the who is now drawing up plans for a full evacuation of the hospital. the organization says they were able to spend one hour inside the hospital, gaza city's largest, in a mission coordinated with the israel defense forces to ensure safe passage. it comes after hundreds of people left gaza city's main hospital, where the israeli military has been conducting raids this week. some medical staff claimed israeli forces ordered the evacuations, something the israeli military denies. all this comes as israel's operation by ground and air continues in gaza. these are the latest pictures of the gaza skyline. you can see explosions and flares there lighting up the sky overnight. meanwhile, amid media reports of a possible hostage release deal, the us says israel and hamas have not reached a deal yet. the national security council spokesperson said: "we continue to work hard to get a deal." on saturday, thousands of family members of the 240 hostages held by hamas in gaza finished a five—day march from tel aviv to jerusalem. at the end of the march about 20,000 people attend a rally outside the residence of prime minister, benjamin netanyahu. for more on all of this, i spoke with our correspondent yogita limaye. you've been speaking to those families who've been rallying outside the residence of prime minister benjamin netanyahu. what is the mood among them, and do you think that's reflective of the broader mood among israelis? i think the broader mood among them is frustration and anger. thousands of people marched from tel aviv a few days ago. they entered jerusalem today and came outside the prime minister's office. and speaking to them, i think the frustration, especially of the families of the hostages, was that the government is not making the hostages the number one priority. so prime minister benjamin netanyahu has repeatedly said and he's talked again tonight about the destruction of hamas being the first priority, then the release of hostages. and speaking to the brother of one of the men who's been taken, a 22—year—old man who was kidnapped from a music festival in southern israel, i asked him what he feels about what the prime minister has been saying and he said i feel furious. i feel furious because the first thing that the government should be doing is getting the hostages released. it's six weeks, and time is running out for many of them. around 30 of them are children. there are also many elderly people. we've also spoken in the past few weeks to the son of an 84—year—old woman who's been taken hostage. he says she needs medication every day to survive, to stay in good health. so for them it's now been six weeks, and they say they have had very little information from the government. they say they want their leaders to look them in the eye and tell them exactly what is being done to bring their loved ones back. i want to touch on the situation in the gaza strip as well, because there continues to be evacuation orders. we're not always sure — there's not always that clarity exactly where these orders are coming from. but for the palestinians who receive them, do they know where to go? is there somewhere for them to go to? i think that's been the problem all along. there were leaflets dropped early on in the northern part of gaza asking people to move to the south, to what the israeli military repeatedly kept referring to as safer areas. but we know that there have been airstrikes repeatedly in central and southern gaza as well, killing hundreds of civilians just this week alone, and so people ask this question: what exactly is a safer area? and now, over the past week, they've been dropping leaflets also over khan younis in central gaza, telling people to evacuate from there. so it is very unclear. where do you actually go to? you've fled your home to try to get to a safer area, but what exactly is safe? and this is the question that people in gaza keep asking when we've been speaking to them. of course, today i think what has particularly stood out, and there's been a lot of commentary around it, are videos that emerged on social media of a strike on a school shelter in northern gaza. we've had the un making very sharp comments about it, saying that a ceasefire is required immediately. it's not clear what caused that explosion. israeli defence forces are saying that they're investigating. the hamas—run health ministry says scores of people have been killed there. 0ur correspondent there, yogita limaye. yogita, thanks so much. also on saturday, we've heard from us presidentjoe biden on the war. in an opinion piece, published in the washington post, mr biden has reiterated his call for a two—state solution to the conflict between israel and the palestinians. the president laid out a us vision for gaza when the war is over, with mr biden saying gaza and the west bank should be reunited under a single governance structure, led by the palestinian authority which currently governs the west bank. for more on this, i spoke to gina abercrombie—winstanley, who serves as president of the middle east policy council. before we talk about some of the content of that opinion piece put out by president biden, i want to ask you about why, why did he presumably, the white house communications team thought this needed to be put out at this particular juncture?— out at this particular juncture? out at this particular “uncture? ., ~ , ., , out at this particular “uncture? ., ~ , ., juncture? thank you. it is an extremely — juncture? thank you. it is an extremely long _ juncture? thank you. it is an extremely long op _ juncture? thank you. it is an extremely long op ed, - juncture? thank you. it is an extremely long op ed, it - juncture? thank you. it is an | extremely long op ed, it took me a long time to get through it all as long as the —— as well as the hamas wall and what should happen in relation to gaza. i think the president and administration felt it was very important to get across the main points. he does of course talk about leadership but he makes three main points in this piece. number one, an acknowledgement that the pain and suffering, the loss is on both sides, to make clear that he understands that the united states, understands that and he understands that. number two, he outlined some red lights for both sides and he called for the international community to help with the reconstruction of gaza, to address the destruction that the government of israel has walked with regards to gaza strip. those redlines are, number one, no terrorism should be able to be launched from the gaza strip, again, whether returning to. number two, again, whether returning to. numbertwo, no again, whether returning to. number two, no reoccupation of the gaza strip. no blockade or siege of the gaza strip and no territorial grab from the government, as israel has had some discussion about a buffer zonein some discussion about a buffer zone in the north and along those lines. i think the president felt it was important to be very clear, as early as possible, about what the united states would... go ahead. i wanted tojump in a one point, specifically about gaza and the west bank after the conflict because he did write about the us position in that saying that "gaza and the west bank should be reunited under a single governance structure, ultimately, under a revitalised palestinian authority." we know thatis palestinian authority." we know that is not where israel stands at this present stage, so do you think that will change over time? do you think the us could have a role in persuading israel to change its position there? i israel to change its position there? ~' ,., israel to change its position there? ~ ., ~ there? ithink so, and i think there? ithink so, and i think the israelis _ there? ithink so, and i think the israelis are _ there? ithink so, and i think the israelis are likely - there? ithink so, and i think the israelis are likely to - there? i think so, and i think| the israelis are likely to come to work in and of themselves. something else under an israeli rule seems impossible to say no reoccupation, then it means it is impossible for the government of israel or some entity from israel to provide governance of the palestinians and the israelis are not interested in doing that either but someone has to. of course if the israelis did take that on they would be responsible for the governance and the reconstruction of the gaza strip. i think this is something that very few people have stomach for at this point. i imagine it will be a challenge for the president to get funding out of congress for the united states to contribute to it, and there are others, particularly if it were under israeli rule, that would be unwilling to do so. i israeli rule, that would be unwilling to do so.- israeli rule, that would be unwilling to do so. i want to touch on — unwilling to do so. i want to touch on the _ unwilling to do so. i want to touch on the hostage - unwilling to do so. i want to i touch on the hostage situation. in that op ed the president said the us has been working round the clock to get american hostages out and i'm sure you've seen the scenes today in israel with families who have had their loved ones taken hostage going directly to the residence of the prime minister benjamin netanyahu. do you think those families felt that enough has been done and attention on the hostage situation?— attention on the hostage situation? ~ , , ., ~ attention on the hostage situation? ~ ,, .,~ situation? well, i can speak as a human being _ situation? well, i can speak as a human being with _ situation? well, i can speak as a human being with family. - situation? well, i can speak as a human being with family. i. situation? well, i can speak as. a human being with family. i am certain that they do not. i think none of us would until we got our loved ones home. this needful focus, for the return of hostages, is very well understood by the president. that is why it was included in his op. ed. it is certainly more than a talking point for us officials and we talk about the return of hostages and we know we have our own citizens among them as well as other foreign governments have their own citizens as hostages. it is the same issue as our own citizens have been trapped in the gaza strip under israel's attack on the gaza strip. this is needing to ensure the safety of our people is paramount. the singer taylor swift has postponed today's show in rio dejaneiro due to extreme heat, following the death of a fan before her show in the city on friday. a 23—year—old member of her audience died after suffering a cardio—respiratory arrest and in a handwritten statement posted on social media, swift said she was placing the safety and well—being of her fans first. the government has now ordered drinking water be provided and easily accessible at concert venues. 0ur reporter, nicky schiller, is in the newsroom with more. taylor swift is in rio on the latest leg of her record—breaking eras tour. some 60,000 concert—goers were in the stadium for the sell—out gig. now, the event organisers say the 23—year—old fan was taken unwell at the stadium. some reports say she fainted. she was taken to hospital, but died. an investigation into the cause of her death is under way. taylor, who was seen handing out water bottles to some fans during the gig, posted this message on social media. she said, "i can't believe i am writing these words, "but it is with a shattered heart that i say we lost a fan "earlier tonight before my show. "i can't even tell you how devastated i am by this." she went on to offer her condolences to friends and family of the fan. now, there had been due to be another taylor swift concert on saturday night in rio, but taylor posted this — "i am writing this from my dressing room in the stadium. "the decision has been made to postpone tonight's show due "to the extreme temperatures in rio." she goes on to say, "the safety and well—being of my fans, "fellow performers and crew has to and always will come first." brazil has been in the grip of a heatwave and friday's show took place on the same day that rio recorded its highest ever reading of the so—called heat index — that combines temperature and humidity. it measured 59.3 celsius, orjust over 138 fahrenheit. the government has now ordered that all venues provide water and that fans can carry in their own water bottles. thejustice minister posted: he went on to say: now, taylor is due to play another concert in rio on sunday night with further gigs across brazil later this week. earlier i spoke to constance malleret who is a journalist based in rio. you are in brazil. just talk to us about the weather conditions there right now. well, it's extremely hot, as you were saying just now. feel like temperatures hit 60 celsius in parts of rio today and it's been more than a week now that we've had these extremely — unusually high temperatures in what is still spring in brazil and it is — temperatures are bordering on unbearable in most parts of the city. i think you can see you may have your fan on there. i'm just wondering how are most people coping with these conditions right now? i do have my fan on. i don't have air—conditioning, so my fan is my lifesaver right now. brazil, rio in particular, is a very hot city. people are used to very hot summers and that means people are equipped with fans, with air conditioning but demand — energy demand has been so high this past week that there has been very frequent power cuts and those often affect poor neighbourhoods, which are usually hotter because they're areas which are more densely populated, which have less green coverage and so, it's definitely been very tough for large parts of the population who can't always depend on an air—conditioned bedroom. so, when it comes to events that are held in stadia, arenas, that kind of thing, i mean, we understand some temporary measures have been put in place in the wake of the death of this fan at the taylor swift concert, but is brazil set up for this kind of heat going forward if these increasingly warm conditions continue? i mean, you could argue that parts of the country aren't because these are stadiums — i was in a samba school earlier today which was in an area often packed with people and they had a few fans trying to cool people down. they would need to install air—conditioning for their events to keep being viable if these kinda of temperatures are going to become the new normal — which, you know, everything indicates we will be experiencing much more frequent heatwaves like the one we are going through now. and just touching on this year in particular, its an el nino year, spring now. i mean, what could you be expecting for the rest of the year? as you say, it is an el nino year. it's actually the eighth heatwave that brazil is experiencing this year in 2023 and everything indicates that the summer ahead, which starts at the end of december, will be particularly hard, partly due to el nino but also partly due to the global rise in temperatures and to, as i mentioned, the fact that these kind of events are expected to become more frequent due to climate change and global warming. and would you say, you know, this also underscores, as tragic as it is, you know, some of the lengths that fans have gone to around the world to attend these era concerts put on by taylor swift? i think it does, and brazil is infamous for extremely ardent fan bases, whether that is for taylor swift orfor local bands. and also, because it's a country, a city which is used to hot temperatures, lots of people still haven't really come to the realisation that last week required particular caution regarding the heat and its health effects, so that could be a factor as well in the scenes we saw yesterday at the estadio stadium. constance malleret, great to talk to you. thank you so much. turning to news now from the world of tech. some of the biggest names in entertainment — including disney, comcast and warner brothers discovery — have become the latest companies to pause their advertising on x after the platform's owner, elon musk, responded approvingly to an antisemitic post earlier this week. mr musk denies it was antisemitic. he's said on saturday he will be filing what he called "a thermo—nuclear lawsuit" against all those who colluded in a fraudulent attack on x. 0ur reporter, tom brada, has more details. elon musk�*s commitment to free speech is becoming more and more costly, and he'll be concerned by headlines like this. companies such as disney, warner brothers and ibm are pulling ads on the social media site x because of concerns over allegations of hate speech and extremism. now, there are two issues at the heart of this current row. one of them relates to a post which mr musk put out on wednesday, when he wrote: ..underneath a post which was pushing an anti—semitic conspiracy theory. now, mr musk denies being anti—semitic but the white house put out an unequivocal statement, saying: another issue stems from an investigation by a left—leaning us media watchdog, which says that some ads are being placed alongside pro—nazi content. now, mr musk has threatened to launch a "thermonuclear lawsuit" and x argues it has some of the strongest brand safety controls in place, but it is clearly a problem if firms are reluctant to work with x. when mr musk took over the company last year, advertising made up around 90% of revenue — although byjuly this year, he acknowledged that ad revenue had fallen by 50% and he has tried to move away from a reliance on advertising revenue. he's obviously brought in the membership fee for the once sought—after blue tick, but even that only brings in a tiny fraction of the revenue that's needed and even for the richest man in the world, that presents a serious problem. another ceo in silicon valley, sam altman, was ousted at open ai. the creater of the artificial intelligence firm behind chapgpt sacked him, saying it's lost confidence in his ability to lead the company. but he could be back soon. us media are reporting that he is in talks to return as ceo of the company. the board had said friday mr altman had not been "consistently candid with his communications", hindering its ability to exercise its responsibilities. the president of the company, greg brockman, resigned in protest hours after mr altman was fired. well, for more on open ai and the boycott against elon musk, i spoke earlier to takara small. she's a technologyjournalist and columnistjoining. so, we've got some reports tonight, takara, that verge says that the 0penai board is in discussions with the ousted ceo sam altman to have him potentially return to the company as ceo. what are you hearing? i mean, first off, it's very rare to see discussions about an executive in a tech company migrate into social discussion. i mean, you're hearing this and seeing this on social media, on twitter, instagram and tiktok, and right now, what i'm hearing — and again, it's very rare to have this discussion happen so publicly — is that actually, sam altman will return to the company, to 0penai. so, yes, he was ousted on friday and, yes, there has been very much a volcanic eruption over this but that he will return and i think it has much to do regarding sam's actual position in the company — he has become the face of ai — and for him to be ousted means that likely, there will be money, there will be funding, there will be supporters who will go with him. so, potentially, his ousting could've potentially blindsided some investors. but when it comes to tensions between altman and the board, i mean, do you think they will be solved overnight or do they remain? i mean, at this point in time, i mean, there are so many rumours, mudslinging, i