Welcome to bbc news. Police have confirmed that four people have died in a mid air collision between a light aircraft and a helicopter in buckinghamshire. The accident happened close to the village of waddesdon. From there, our correspondent ben ando has the latest. Working into the night, the police and air investigators tried to find out why this crash happened, and who was killed. Police say a total of four people were in a helicopter and a light aircraft, two in each, and no one survived. Our priorities today remain with investigating the next of kin, finding out who they are, informing them and supporting them with specialist officers as we progress the investigation here on site. The collision happened just after midday in the skies over historic Waddesdon Manor in buckinghamshire. The tailplane of a light aircraft blease dss and could be seen lying in woodland, coolly detached from the rest of the plane. Nearby a win. In a small clearing further away the burned remains of what is thought to have been the helicopter. Both aircraft had taken from wick and air park about miles away. Wick. Eyewitnesses say they saw the two come into contact with each other and spiralled downwards in part of a large woodland estate owned by the national trust. Why they collided will be part of the air accident investigation, but visibility was good and weather was clear and bright. Much of the debris is in small pieces and scattered over a wide area. This Evening Police have cordoned off the crash site, they say the searching will ta ke site, they say the searching will take place in the hours of daylight, and that is expected to take until at least monday. The brexit secretary david davis says the uk has made compromises in the brexit negotiations and hasnt seen the same level of compromise back. Hes urged the other eu countries to be more flexible. But at a summit of eu leaders in sweden, the president of the eu council, donald tusk, has insisted the uk has much more work to do if talks on trade are to start next month. And the irish Prime Minister leo varadkar says without a guarantee therell be no physical border with northern ireland, discussions on trade cannot begin. Our Political EditorLaura Kuenssberg reports from berlin. Here in berlin, where the decisions matter so much, there in dublin, this morning. And almost everywhere, the Government Mission to persuade the rest of the eu to please move on. The Prime Minister in sweden admits there is more to do. We are agreed that progress has been made but there is more to be done. We should move Forward Together towards the point where sufficient progress can be declared. But someone has to budge to get there. In the European Capital that speaks with the loudest voice, the view is that britain must shift. The brexit secretary does not think it is down to him. So far we have made quite a lot of compromises. On citizens rights, we have made all the running. We have offered some quite creative compromises. We have not always got that back. You have come to the powerhouse of the European Union without an offer on what pretty much everybody on the other side agrees is the biggest problem. Now, eu politician after eu politician has been Crystal Clear that they are not going to move on in the way that you want to until the uk is willing to make a promise, not to give a figure but to give a promise that you are prepared to write a big cheque. Of course they are saying that. What is also clear is that many of them do want to move on. They see it is very important to them. Countries like denmark, holland, italy and spain, countries like poland can see the benefits in the future deal that we are talking about, the deep and special relationship the Prime Minister refers to, a strong trading and security relationship. They all have things to benefit from that. This is not a one way street, not something for nothing. This benefits everybody. So who is holding out . Germany and France Holding things up . To be clear, germany and france, the open secret of europe, are the most powerful players on the european continent, of course. And so what they believe is very influential, sometimes decisively so. But its the whole of europe decision, 27 countries. Why not admit that at some point in the next ten days, two weeks, you are going to have to say that the uk will put a more generous financial offer on the table . Nothing comes for nothing in this world. With david davis playing bad cop in germany, he left theresa may looking like an awkward chief constable in sweden. Ireland, clearly not satisfied over the issue of the cash or the border after brexit. Its 18 months since the referendum, its ten years since people started agitating for a referendum. Sometimes it does not seem they thought all of this through. Welcome to this press conference. For now, the eu is publicly and resolutely sticking together, demanding more progress, withjust a couple of weeks to make it and suggesting that mr davis idea that they should compromise was a joke. I made it very clear to the Prime Minister, theresa may, that this progress needs to happen at the beginning of december at the latest. I appreciate david davis english sense of humour. He probably does not like his ideas being called a joke but he has to compete with tory demands at home, too. Ministers might have to back down over their hope of putting the date of brexit into law. Which is harder dealing with the tory party or the 27 other countries . You have described a two thirds of myjob. This is the most important negotiation and transition in our modern history, in peacetime anyway. Of course it is difficult. People have passionate views. And which is harder . laughs . Idont know the answer. It varies day by day. At home and away, this is no longer about pressing the flesh, as the deadline looms. The talks are getting tougher. The journey to the next phase of brexit, a Charm Offensive perhaps a little short on charm. Pressure is growing on president Robert Mugabe with his own party zanu pf calling on him to go. Thats been echoed by the veterans of the war against white rule in zimbabwe, who until now have long been the president s most ardent supporters. Their leaders have called for a mass demonstration in the capital harare tomorrow. Today, mr mugabe appeared in public for the first time, since the military takeover. Our africa editor, fergal keane reports from zimbabwe. Here in harare, the sense of crisis is swelling. After a day of the surprising and a surreal. It began with an appearance nobody expected. The aura is gone. Robert mogo abe is a man reduced in stature and in options. Robert mugabe. In this coup, unlike any other coup, he emerged today to open a graduation ceremony. The voice that once preached revolution now reciting the mundane requirements of the moment. Applause. In the passing of any era, there are ample magic moments. Caught napping. Emblematic. It has happened a lot these days. Robert mcgarveys world has shrunk. She he was let out on licence today by the army. Then taken away again. The fear with which he reviewed ruled his people, the patronage which which he invoked loyalty has gone. But there is a growing disquiet at the fact that he remains president. By lunchtime the pressure was intensifying pressure was intensifying pressure was intensifying pressure was intensifying. These are vetera ns, pressure was intensifying. These are veterans, old allies now publicly calling on mr mugabe to go. Between now and tomorrow, we are sending a warning to mcgarvey, his wife, and the game is up, finished, done. Mugabe. The workaday normality of the street is on the surface, and expectations of change are going. There is long overdue, we expect things to change economically, socially and politically, and people should be free to choose who their next leader should be. We just want to be at peace, we dont want war, we dont want civil war, we dont wa nt we dont want civil war, we dont want anything that is to do with us not having pace. But the military has a dilemma. Hence these photographs, smiles and handshakes. Under pressure from regional powers and the international community, they needed transition with a veneer of legality, ideally with president mugabe agreeing to resign. So far he will not. That ambivalence has become a problem, the albatross around the militarys neck, having to play the legal constitution on one end, but at the same time they wa nt one end, but at the same time they want him out. But by early evening it was apparent most of his own party wa nt it was apparent most of his own party want him gone, a majority of provincial branches called on him to resign and there is talk of impeachment. These moves could be decisive. Police in dorset have released a man they were questioning in connection with the disappearance of 19 year old gaia pope who was last seen in swanage ten days ago. He is the third person the police have arrested on suspicion of murder and then released. Jon donnison has more. The beautiful dorset coast now the focus of an ugly search. More than 50 officers from the police, fire service and coastguard combing the area above and below the cliffs, just outside swanage. But its ten days since gaia pope was last seen. The search moved to this clifftop area after police found womens clothes similar, they say, to what gaia was wearing when she was last seen. It was shortly after that discovery that officers arrested 49 year old paul elsey. This evening, hes been released under investigation. Paul elsey lives in one of these flats in this complex of morrison road in swanage. His 71 year old mother and 19 year old nephew were arrested earlier this week but have also been released while the investigation continues. This cctv footage shows gaia running up morrison road just before she disappeared. Earlier, shed bought an ice cream at a petrol station outside swanage. And her family want the search to intensify. Whatever youre doing, if youre planning on being in this area over the weekend, please do get in touch via the find Gaia Facebook group, come and pick up some flyers, and get out there looking for her. And tomorrow is expected large numbers of local people willjoin police on this coast continuing the search for her. Former lebanese Prime MinisterSaad Al Hariri has tweeted, saying he is now on the way to the airport in riyadh. Mr hariri resigned unexpectedly during a visit to saudi arabia earlier this month. It was claimed he was being held against his rule but this is a lie. It is believed he is travelling to paris after the french government said he was welcomed out. Now on bbc news its time for newsnight with kirsty wark. Its been a choppy couple of weeks for the government. But can Philip Hammond put them back on an even keel and save his own skin too . The chancellors got a big job of work to do with next weeks budget. So, is he preparing something specialfor that battered red box . New details are emerging about Philip Hammonds budget tonight. Ive been speaking to one of his closest political friends, who reveals the chancellor is planning a modest loosening of the taps. But another tory has a warning for him on housing if we do not do something about this over the next three to four years, before the next election, then we will be writing ourselves out of the electoral script. The budget could see budging on universal credit too. Tonight we go to newcastle to see first hand some of the problems solved and created by the new system. I hid in my bedroom for nearly two weeks. I only went out of the bedroom to go to the toilet. My children went to stay with my parents for a little while. Purely because i didnt have the money to feed them. All of this makes next week a make or break week in politics. Well discuss it all with our panel of pundits. Good evening. The budget is normally a big eagerly awaited affair, but this year next wednesdays speech almost got lost in mountain of problems facing theresa may