North koreas leader has vowed to make President Trump pay dearly for threatening to destroy his country. President trump made the remarks at the United Nations on tuesday. Kimjong un has now hit back in this war of words, calling donald trump mentally deranged. On thursday, President Trump imposed new sanctions against individuals, companies and foreign banks that trade with pyongyang. 0ur diplomatic correspondent, james landale, reports. In recent weeks, north korea has simply ignored new sanctions imposed by the United Nations and pressed ahead with its nuclear and missile tests. So now the United States has responded by promising to increase its own restrictions. At a meeting in new york with the leaders of japan and south korea, donald trump said he had signed a new executive order extending us sanctions against companies and banks that finance and facilitate trade with north korea. Today im announcing a new executive order. The us president said this would specifically target north koreans textiles, Information Technology and manufacturing industries. Our new executive order will cut off sources of revenue that fund north koreas efforts to develop the deadliest weapons known to humankind. Whats unclear is what impact the sanctions would have on chinese banks doing business with north korea, but after weeks of pressure on china to do more, mr trump said it was tremendous that china had told its banks to abide by existing un sanctions and reduce their engagement with north korea. And again i want to just say and thank president xi of china for the very bold move he made today, and that was a somewhat unexpected move and we appreciate it. 0n the floor of the United Nations, president moon of south korea told delegates that sanctions were needed to bring the north to the negotiating table, but he said that seoul was not seeking north koreas collapse and warned against accidental military clashes that could lead to war. Translation we will not seek reunification by absorption or artificial means. If north korea makes a decision even now to stand on the right side of history, we are ready to assist north korea together with the international community. The question of course is whether any of these sanctions will change north koreas behaviour. Earlier this week, mr trump threatened to totally destroy north korea if the us was forced to defend its allies. The countrys foreign minister, ri yong ho, dismissed the president s speech as the sound of a dog barking. James landale, bbc news, new york. Mexicos president says says there could still be people alive in the rubble of 10 buildings which collapsed in tuesdays earthquake. 273 people are now known to have died and thousands more have been injured. 0ur correspondent Rajini Vaidyanathan is in the capital the rescue effort is in full force here in mexico city. Close to a0 buildings collapsed in the earthquake on tuesday. This building is in the fashionable la condesa district, which is nicknamed hipster town, it is normally home to fashion designers, millennials and artists. This operation at the moment is a rescue operation. The marines and the armed forces here believe there are people inside and theyre trying to make contact with them. As you can see there are a lot of people and a lot of machinery as well working at the rubble. A lot of it is manual work, people passing bits of the rubble hand to hand to remove it very carefully because its a precarious operation. International assistance has also arrived here. The Israeli Government has sent help and theyre actually involved in this particular rescue operation. While people wait, there are doctors on standby as well ready to treat anyone who is rescued and who comes out. Periodically this place falls silent. People put their hands up and they are told to be silent while rescuers try to call out to people who they believe are trapped in the rubble. Its not just officials who are helping with the rescue efforts here, many of these people are volunteers giving up their own time and pitching in to try and rescue as many people as they can. The atmosphere here is very intense, its one of anticipation. People are still hopeful that many more people will be found in the rubble alive. Lets take a look at some of the other stories making the news. The United States is to provide nearly 700 million in additional humanitarian assistance for the people of syria. 500 million would be distributed inside syria. The rest would go to lebanon, jordan and turkey, which were hosting up to five million refugees from the conflict. It brings the total sum contributed by the United States to just over 7 billion since 2011. The Un Security Council has warned that a planned referendum on independence in the kurdish region of iraq could have a potentially destabilising impact. In a unanimous statement, the 15 Council Members said the vote would detract from the fight against Islamic State militants. The iraqi government, iran, turkey and the United States are all opposed to the kurdish referendum. Banks and Building Societies in the uk are to carry out checks on all current account holders to identify illegal immigrants. From january, they will have to check customers names against a database supplied by the home office. Some people, including those whove overstayed their visas or had asylum applications refused, will have their accounts closed orfrozen. Puerto rico isjust beginning to assess the damage after Hurricane Maria ripped across the island. Many buildings have been destroyed and the power is still out for more than 3 million people. The governor has declared it nothing short of a major disaster. The bbcs will grant is there. For many puerto ricans, the first step after maria has simply being to clear a path back to their homes. 0thers, though, no longer have homes to go back to. This small town of catano just outside the capital was hit hard by the vast storm. Residentjuan roman lost everything. His modest home now reduced to a pile of wooden planks, rubble and twisted metal. All i have now is what im standing in, he said. His neighbour, evelyn, may still have a home but it is uninhabitable. The winds ripped her roof off and the place flooded. Everything from mattresses to electrical appliances will need to be replaced, but its not the material things that upset her, its the fact her ioi year old mother, sheltering from the storm at a neighbours, wont be able to return home for months, if at all. Translation ijust had to tell her that we lost our home. She wanted to come back but i had to tell her she couldnt because its gone. I know there are others worse off than us, but it hurts, especially at her age. With thousands of trees felled by the hurricane, debris litters the streets and blocks the highways. The electricity is still out and authorities are warning it may take many weeks before it comes back. With daylight, the extent of the damage in puerto rico is becoming clear and its obvious that many here have lost almost everything. Federalfunding is going to be crucial to the rebuild here as this bankrupt island tries to pick itself back up after maria. President trump has authorised federal money to help places like catano and declared a major disaster across puerto rico. We are going to start the process now with puerto rico, we will have further updates on what is one of the most serious storms anyone has ever seen. President trump is now expected to visit the territory soon, but people here will be looking for more than just platitudes from him. This Coastal Community was one of the poorest in puerto rico long before Hurricane Maria struck. Jobs are scarce here and people who are finding it tough on the heavily indebted island just saw it become much tougher. Will grant, bbc news, catano, puerto rico. And the United Nations is to launch an investigation into the massacre of yazidis, a minority religious community in a raqqa, by so called Islamic State. The Security Council voted unanimously to set up a unit which will gather evidence of crimes by is. International lawyer mark lingy was at the un in new york, along with a yazidi who was captured but managed to escape. International lawyer amal clooney. Fleeing the savagery of so called Islamic State. This is iraq three years ago, in the mountains of sinjar. Thousands of yazidis were slaughtered. Thousands of women and young girls seized and kept as sex slaves. 24 year old nadia was one of them. Many in herfamily were killed by is. For the past year she and lawyer amal clooney have been pushing for an investigation into what the un calls genocide. Nadia murad, what does it mean for you today, for the yazidis . Its a big day for us. Ever since my community was subjugated by isis, weve dreamt about it. We want to see justice for the victims and to bring the perpetrators to trial. Amal clooney, how big a step forward is this in legal terms . Its a huge step, lyse, its really a milestone for the victims of isis, like nadia. What happened today is that the council has voted to establish an International Investigation to collect evidence of isis crimes. So for the first time the un is saying to isis terrorists that if they commit genocide, crimes against humanity and warcrimes, they will be held to account in a court of law. How hard is it going to be to collect the evidence . Youve been warning evidence was disappearing and witnesses were disappearing. Exactly why weve been saying this is urgent, witnesses are becoming dispersed all over the globe. They are sometimes more reluctant to give evidence after a long time. Medical evidence disappears. Mass graves have been contaminated. It was urgent for the council to take this action. They can do it. Will this horrible chapter ever really be over for the yazidis given all thats happened 7 i went to visit my family home a few months ago, it was completely destroyed. Isis had left nothing behind. Its going to be hard to forget but at least working now to bring those criminals tojustice. At least thats something. Tiny victory. 0n the battlefields of iraq and syria, iss monstrous caliphate is grumbling. Defeat is only a matter of time. Justice will take far longer. And those who survived will never forget. Lyse doucet, bbc news, new york. Stay with us on bbc news. Still to come, bringing tv audiences closer to the wild and the wonderful for more than 50 years, Sir David Attenborough looks back at his broadcasting career. Ben johnson, the fastest man on earth, is flying home to canada in disgrace. All the athletes should be clean going into the games. Im just happy that justice is served. It is a simple fact that this morning, these people were in their homes. Tonight, those homes have been burnt down by serbian soldiers and police. All the taliban positions along here have been strengthened, presumably in case the americans invade. Its no use having a secret service which cannot preserve its own secrets against the world. And so the British Government has no option but to continue this action, and even after any adverse judgement in australia. Concorde had crossed the atlantic faster than any plane ever before, breaking the record by six minutes. This is bbc news. The latest headlines donald trump steps up the pressure on north korea, with more sanctions against companies who trade with pyongyang. The mexican president has promised to continue the search for survivors of tuesdays earthquake. He said rescuers were still looking for anyone alive in the ruins of ten buildings. The death toll has passed 270. We can now speak to ralph cossa, president of the Pacific Forum at the centre for strategic and International Studies in hawaii. We have the United States president calling Kim Jong Un Kim jong un rocket man and kim jong un calling Kim Jong Un Kim jong un rocket man and kimjong un kim jong un calling donald trump de raged. Is this helpful . Any kind of increased rhetoric like that is not helpful. In north korea, if you insult the leader, it makes it extremely difficult to have a dialogue. There is this interesting move in terms of sanctions where china has actually moved to cut off some Banking Services to north korea. Is that going to be more successful tha n korea. Is that going to be more successful than the us sanctions . hope so. The chinese have been half hearted on sanctions but they have also been patting themselves on the back for the past year saying they has not been another north korean weapons test is because china had put them on firm noticed not to do it. The chinese were insulted and annoyed when they conduct did the test a couple of weeks ago. That has been part of the reason why china has decided they have to play ha rd ball has decided they have to play hardball because has decided they have to play hard ball because north has decided they have to play hardball because north korea is not showing them any respect. But is it going to work . It cannot hurt. Whether it will compel the north koreans to stop is in question. Whether it can convince them they can have Economic Development and no Nuclear Weapons that is a step in the right direction. You have to convince them they have to make the choice and then you hope they make the right choice. North korea, being a very isolated country, yet they seem a very isolated country, yet they seem to have a very isolated country, yet they seem to have resources a very isolated country, yet they seem to have resources for their Nuclear Programme where do they come from . The black market, from countries still conducting deals with them, they come from labour is working abroad. Labourers. This is part of what the sanctions are aimed at, the flow of high currency so aimed at, the flow of high currency so they will have to be forced to make some choices. China has always said you have to have dialogues and talks. Are there talks ongoing at all . There has obviously been some discussions. Bringing back a us citizen means that there were some talks behind the scenes. But late one to talk about the Nuclear Programme. one to talk about the Nuclear Programme. But the us wants to. The head of facebook, mark zuckerberg, says the company will give the us Congress Information about thousands of political adverts that were paid for by russians during last years president ial election. He said he would work, with others, towards new standards of transparency for political advertising. In future all such adverts will make it clear who paid for them. 0ur north america editorjon sopel has more from washington. It is significant. After the eu referendum, in britain, the phrase that gained currency was post truth. Often, in the president ial election, last year, it felt like we were going through no truth. Social media was awash with advertisements masquerading as serious news stories. They were invariably fake, and they were also invariably in favour of donald trump and against Hillary Clinton. Things like, Hillary Clinton sold weapons to Islamic State, Hillary Clinton has had murdered her fbi officer involved in unmasking the e mail enquiry, and also things like, in a surprise move, donald trump gains the backing of pope francis. Now, all of this had an impact because at the end of the election, more people were leading the fake news stories, more people were reading the fake news stories, according to a survey, than the real news. Under enormous pressure, facebook is going to show the transparency that it has often talked about and is going to reveal just where the source of those adverts came from, how much the russians paid, where they were all going. Now, this will answer one question from the president ial election, the extent of russian involvement. The question it will not answer is what impact those fake news stories had on the electorate that will still be hotly contested between the Trump Supporters who will say it had no impact, and the Hillary Clinton supporters who said it changed the election result. A Global Survey commissioned by the bbc has found increasing opposition to any form of governmental regulation of the internet. It found that the proportion opposed to regulation has risen from 51 to 58 since 2010. Only two of the countries surveyed britain and china were in favour. The survey also found that 80 of those questioned were anxious about fake content on the internet. And for more on all our stories and analysis from our correspondents just go to our website. The worlds richest woman, the l0real cosmetics heiress, liliane bettencourt, has died at the age of 94. She was worth an estimated 40 billion. Liliane bettancourt ran a philanthropic foundation. She once gave a billion euros worth of gifts to a society photographer. Asked why she did, shes said to have replied, because hes worth it. For more than half a century Sir David Attenborough has brought us a world of creatures and cultures that millions had never seen before. Now to mark the re publication of his zoo quest book based on the original 1950s Bbc Television series sir david has been talking to our arts editor, will gompertz, about his work in the early days and how the world has changed since then. Let me take you back to the mid 1950s. Archive this is the story of a search for a dragon. When a young David Attenborough took his first tentative steps as a Natural History programme maker. As he circled us, flicking out his great yellow tongue, savouring the smell of the goats flesh, he looked almost as though he had walked out of some prehistoric age. Gosh, look at that. Now here we are, 60 years later at london zoo. In the dragon house, named after the man who has become quite possibly the most respected broadcaster on planet earth. David, the world and television has changed a lot since you first encountered one of those. Yes, hugely. Yes, when i encountered that, there were two networks in britain only. The bottom of the ferry grated on the white coral sand. Going to bali in 1956, um, i only saw one other european all the time i was in bali, which was several weeks, a couple of weeks. And we filmed gamelan, and we filmed dancing, and it was just marvellous. Whoops, look at that i mean that, that was great fun. It was the first time that that had ever been seen on television. Yes. And it took us weeks to get there and get that filmed. And of course the world was new. Thats an example of it. I mean people. It wasnt the greatest film ever made, but nobody had ever seen that thing before. Youre 91, so youre not as young as you once were. On a good day, how old do you feel in yourself . About a5, really. Yes, i think so, really. And i mean, look, this is luck, isnt it . This is just luck. Jack and i set off wildly in pursuit. His luck is our good fortune. There are more programmes to come from this much loved big beast of the broadcasting jungle. Will gompertz, bbc news. For many chefs, winning a michelin star is often considered the pinnacle of their career. But renowned french chef, sebastien bras, has asked to be stripped of his prestigious three stars. He says the pressure to earn them again every year at his restaurant in the village of laguiole, in southern france, is proving too much of a strain. Michelin confirmed this is the first time a chef has asked to be dropped, without considerably changing their business model. Sarah corker reports. Perched above the plateau in southern friend, the food here is inspired by the forests and meadows nearby. Critics describe sebastien brass food is spellbinding but the chef is walking away from michelin start cooking. The pressure to satisfy food inspectors has proved too much. Translation we have been carried the stars for ten years but for a few years we have been saying, for a few years we have been saying, for how long will we continue to have this tension felt every day . Do we wa nt have this tension felt every day . Do we want this until the end of our career . He announced the decision in this video. He wants to be dropped so this video. He wants to be dropped so he can start a new chapter in his life. The chef is famed in france for a life. The chef is famed in france fora mix of life. The chef is famed in france for a mix of vegetables and flowers, one of 27 french restaurant in the elite three michelin start category. It is given to chefs at the peak of their profession. Sebastien brass decision has shot some, read knighting a debate about the pressures faced by top chef. Transaction mac i think my kitchen will somehow feel liberated, open minded,. Will somehow feel liberated, openminded,. It does not mean mechelen will automatically remove the restaurant. Michelin. But sebastien bras says he wants to be able to cook in serenity. Isil key has become the latest sport to make it in china. The late king beating vancouver in beijing. There are hopes the sport can follow the footsteps of a basketball which has found huge success in china. Thats all for now you can get in touch with me and most of the team on twitter im bbcreged ahmad. Hello. No sooner do we get rid of one weather front from the uk, there is another coming in from the atlantic in the day ahead. A day that starts chilly, especially in rural spots. Freezing as the day begins. Fog patches, especially in eastern and south east england. Here is the next weather system. Rain in northern ireland. It is slowly taking that rain further east during the day. Breezy and wet in northern ireland, some outbreaks of rain edging into the west of scotland. The bulk of the uk is dry. Chilly to begin the day, but for many of us, plenty of sunshine. Remember, some mist and fog around. East anglia, south Eastern England are most prone to that before it clears away. It should not take long. Along with the rain in the west, the wind picks up. Especially in the coast and hills. Moving away from northern ireland, the rain goes into scotland and wales. More light and patchy as it does so. Leaving parts of Eastern England and the south east dry. Perhaps some sunny spells. Temperatures, 19. With the wind and rain, it will feel quite cool. As we go on through friday night, this weather system stalls. There is cloud and drizzle affecting parts of england and wales. That is the start of saturday. Much more mild on saturday morning. The big picture for the weekend. An area of low pressure to the west of us. There will be a weather front approaching from the west. The wind is picking up on saturday. Increasingly windy in the west. A gale developing later on saturday. This area of cloud and patchy rain covering england and wales going north during the day. All of scotland apart from the north keeping sunshine. Southern england breaking into sunshine during the day. Perhaps some sunny spells in northern ireland. A bit of warmth. This weather system coming in from the atlantic, some uncertainty about how far east it will go during sunday. Some sunny spells either side of it. Easing winds. We will keep you updated on that. We are following Hurricane Maria, which on sunday should just miss the turks and Caicos Islands. It looks like it will eventually push north further away from the bahamas. This is bbc news. The headlines the United States has imposed new sanctions on north korea over its Nuclear Weapons programme. Donald trump has signed an executive order aimed at preventing companies and banks from dealing with pyongyang. The president s decision comes ten days after the United Nations announced its own measures. The mexican president has promised to continue the search for survivors of tuesdays earthquake. He said rescuers are still looking for anyone alive in the ruins of ten buildings. Over 270 people across central mexico are now known to have died in the quake. The Prime Minister of dominica says at least 15 people have been killed and 20 others are missing after Hurricane Maria struck the caribbean island on monday. The storm then hit puerto rico and is now heading northwards towards the turks and Caicos Islands and the bahamas. Now on bbc news, hardtalk