this is bbc news. the headlines at 4.00pm: zimbabwean soldiers stop demonstrators marching on president robert mugabe's house, as tens of thousands are on the streets calling for him to go. freedom has finally come! it is like lam dreaming! richard leonard is the newly elected scottish labour leader, replacing kezia dugdale who stepped down in august. police and air accident investigators search for clues as to why two aircraft collided leaving four people dead. also in the next hour: taxing takeaway boxes to tackle what is described as, a "global emergency". the chancellor is considering measures to help cut the 12 tonnes of plastic going into the oceans every year, often found inside birds, fish and sea mammals. malcolm young, co—founder and guitarist of the australian rock bank ac/dc has died aged 64.

he founded the group in the 1970s with his brother angus. the dateline london panel discuss zimba bwe‘s future and where the brexit talks go from here. that's in half—an—hour, here on bbc news. good afternoon and welcome to bbc news. protesters in zimbabwe have marched on the private residence of president robert mugabe, urging him to step down. soldiers at state house gently pushed protesters away as they gathered to sing outside its gates, following scenes of jubilation on the streets of harare.

president mugabe has been under house arrest — apart from one public appearance yesterday — since the army seized power on wednesday. our senior africa correspondent, anne soy, reports from harare. this is not the typical coup, it's more like a carnival. zimbabweans here are already celebrating the end of president robert mugabe's rule. this is an unprecedented show of defiance against the strong man. these soldiers are the new heroes in town. zimbabweans are ecstatic. they say the soldiers have granted them their second independence. a moment they've all been waiting for. years of emotion poured out on the streets. what does this mean for you? new zimbabwe, freedom, it has finally come! cheering.

what about you 7 i don't know how to express it because i can't believe it, it's like i'm dreaming. cheering. first lady grace mugabe hasn't been seen in public since the military took control of the country. neither has the former vice—president, emmerson mnangagwa, the man tipped to succeed robert mugabe. these people fought for independence led by robert mugabe. now they are asking him to resign. this is all choreographed to put pressure on the president to leave and to give the transition some legitimacy. like many zimbabweans, rachel has only ever known mr mugabe as president. it means a new zimbabwe, a new era, and i'm fighting for my children so that they can have a better future. i'm happy that she will grow up knowing a different president from the one that i grew up knowing.

yes. thousands of zimbabweans are out to make a strong statement. they want change. for now, any change would do. i can now speak to sara rich dorman is a senior lecturer on african politics at the university of edinburgh and author of "understanding zimbabwe: from liberation to authoritarianism" thank you forjoining us on bbc news. what is happening with robert gabbay, is this the end for him? are you reading this situation?” gabbay, is this the end for him? are you reading this situation? i think he is coming very close to the end of the line. he has been negotiating very hard, saying know a lot. he is

a canny negotiator. up until this week it seems entirely possible that he would ever step down, much less cool under pressure like this. the crucial thing i suppose at the moment is are the generals willing to let him stay? the ants would appear to be known, their patience is out. he is a very stubborn character. the more you tell him not to do something he will push back.” don't know about that, but what i would say is that this is very central to his ethos, who he is, he has been. the idea that somebody else would be president of zimbabwe when he is alive. he might go into exile. i think it is very difficult to comprehend, considering his age and highly high much he may not

fully understand how people are upset and how difficult things after people. i don't think you understand fully the situation he is in. i think that is why this protest today has been orchestrated. this has been designed. it is part of a bigger plan to try to show him that people have lost faith in him. when you describe their the idea of him being in power and he will not relinquish that power, the man who has pieced book about stepping in and taking up the mantle is one of the three musketeers, they have been described. if with each other in the bush, the ousted vice president. also the head of the military. they we re also the head of the military. they were always together. why has been this falling out? there is a long

pattern of factional thinking within the party. it has always been a rather, not an amorphous party, but it has always had different interests combined within the one party. there were a lot of pressure for parties to combine to include groups to work together politically. there have always been factions and falling site. since the party's political prospects become more precarious, and the zimbabwe economic situation has become to wax and wane and be lex predictable, those factions have become more intense. obviously he cannot go on forever, so people have been positioning themselves. what seems to have happened is up until recently there were several different players who were all vying to be the next president, but the

other players have been slowly removed from power, so it has come down to two factions, the somewhat younger generation around grace. lot of people are saying that zimbabweans themselves have nots been able to remove him, but it has taken how women to achieve that, so—called gucci grace. what is the preferred route for getting rid of robert mcgarry? the generals want to do this as constitutionally as they can. you have two factions, it is very high—stakes can. you have two factions, it is very high—sta kes that can. you have two factions, it is very high—stakes that it is in their interests to be able to position themselves as part of their continuing legacy. they do not want to go down in history as the people

he embarrassed robert mugabe and dragged him the dirt. as far as people arrived cheering and celebrating, i think that it would still be very difficult to win elections, to position yourself against certain parts of the zimbabwean population who would not approve of their leader being treated in that way. so they want to do it as neatly as possible, as politely as possible. the result of the concern about the regional organisation and other groups like the african union, which do not like the african union, which do not like the thought of having a clue, and lots of other african leaders to wa nt to lots of other african leaders to want to be in the position where they have to intervene in zimbabwe in any way. they would be much happier with the generals. in future, they do not want to be drawn into this. there is a lot of pressure on them to get it solved

quickly but also procedurally, using the constitution as much as they can. it is simply not politically viable to go any other way. it may happen, but it is not the preferred choice either of those inside the bad way orfor the choice either of those inside the bad way or for the key diplomatic players outside. thank you very much indeed. thank you for that. richard leonard has been elected the new leader of scottish labour. mr leonard — who's backed by most trade unions — replaces kezia dugdale who resigned in august. in his victory speech, he called for "a vision for the future — and a vision for hope again." our scotland editor, sarah smith, reports. applause. electing richard leonard as their leader marks a left turn for the scottish labour party. he says his victory means they will now follow a more radical agenda. there is now a settled consensus established around a radical policy agenda for the scottish labour party of extending public ownership, tackling inequality and poverty, a more progressive taxation system.

applause. hello, ben, it's richard leonard... richard leonard was only elected to the scottish parliament last year. he is a yorkshireman who has spent his adult life working in scotland as a trades union organiser and he is a committed corbyn loyalist. there are times in the past where it has appeared that the scottish labour party has looked to pick fights with jeremy corbyn. i certainly will not be doing that. we can't afford the luxury of splits and divisions. we need to work together, and i am determined that the scottish labour party, from whom today i have received a mandate, will be working closely and in step withjeremy corbyn and the entire labour party. anas sarwar, the defeated candidate in a fractious race, says the party must now unite around their new leader. the departing leader, kezia dugdale, has surprising news of her own today. she is to appear on "i'm a celebrity...get me out of here!", a decision that has been sharply

criticised by members of the party. sarah smith, bbc news. air accident investigators are trying to find out what caused a light aircraft and a helicopter to collide over buckinghamshire yesterday afternoon. two pilots and two passengers died near the village of waddesdon. our correspondent, dan johnson, is at wycombe air park in buckinghamshire, where the two aircraft took off from yesterday. what have we heard? this is the airfield just on the edge of wycombe where those two aircraft took off from yesterday. a helicopter and a light aircraft. it is 20 miles to the country estate that they crashed over midday yesterday. the wreckage lies ina over midday yesterday. the wreckage lies in a wooded area on the edge of

that estate and that is where investigators have been sifting through pieces of the wreckage today trying to work out exactly what went wrong and what caused the crash. at the crash scene in the last 15 minutes so, this is the update we got. at yesterday there was an air accident at waddesdon estate where four people sadly lost their lives. ican four people sadly lost their lives. i can now confirm that all those people where men, two in each of the aircraft involved. all of the families have now been informed and are being supported by specialist office rs are being supported by specialist officers in the family liaison arena. three have visited the site today, so they can understand a little bit more about what happened to their loved ones. you remain on site today so that we can work with the air accident branch and a number of other experts from the fire service and military with a view to using their expert services to re cover using their expert services to recover the bodies of the men, hopefully before the end of today. our enquiries will continue for the

re st of our enquiries will continue for the rest of the weekend and i anticipate that we will remain on site at least until tomorrow evening. so, confirmation that four people died in this crash and that they were on them. they know that there was one pilot on each aircraft and one passenger. all four of them left from this airfield in wycombe yesterday. as you heard the officers saying, there is quite a lot of work still to do for our crash investigators. it is slow, careful work that they have to do and in such horrible conditions today it has been difficult for them to track down every piece of wreckage that is spread across quite an area through that wooded patch just on the edge of that estate towards aylesbury. the investigators are expected to be on site through tomorrow, possibly into monday, much more work for them to do to understand what happened in this crash. let's get the latest on

what is happening in zimbabwe. let's crossed our correspondence. we are hearing a number of developments, including one from party sources who are saying that the sandy pf is going to reinstate the ousted vice president. we don't have any more information at the moment, but at the rally that happened earlier, those were the signs that the supporters, as well as the war vetera ns supporters, as well as the war veterans were saying that they wa nted veterans were saying that they wanted the sack vice president reinstated so that when robert mugabe resigns with a fire him that there is somebody there who can take over. we have heard in the last few minutes from reuters that president mugabe's motorcade left his residence tojeering mugabe's motorcade left his residence to jeering and booing from protesters who had gathered outside.

they have been there for a couple of hours. they were calling on him to resign. the signs we can hear behind you, are those the rallies that continue? these are the protests, but they are dying down. it was very loud here. tens of thousands of people marched through the streets singing and dancing, black, white, war vetera ns, singing and dancing, black, white, war veterans, rich and poor. probably one of the bigger shoots of unity that we have seen in these streets since the 1980s. the army general who downloads the initial ta keover general who downloads the initial takeover a few days ago has met with them outside statehouse and thank them outside statehouse and thank them for comment but also as them to return home. he said that the process is just the return home. he said that the process isjust the beginning return home. he said that the process is just the beginning and that it could take time to resolve. talking of things being resolved,

the south african president has been talking. he said he was cautiously optimistic that the situation would be resolved. why cautious optimism? there appears to be a stand—off with the events of the last few days, the protests, there was a suggestion that this would pressure robert mugabe to step down. he has said to his nephew that he has no intention of stepping down he is prepared to die because he was not legitimise a military coup. there is a sense that this process might be one of attrition and it might take days to resolve. we believe that there for you. the headlines on bbc news: zimbabwe soldiers prevent demonstrations marching on robert mugabe's house, as tens of thousands

of people are on the streets to call for the resignation of the president. richard leonard is the newly—elected scottish labour leader, replacing kezia dugdale, who stepped down in august. police and air accident investigators search for clues as to why two aircraft collided over buckinghamshire, leaving four people dead. large numbers of volunteers are helping dorset police search for the missing teenager gaia pope, who disappeared 11 days ago. the search is focussing on three locations around swa nage. miss pope's family confirmed that an item of clothing found earlier this week matched what she was believed to be wearing on the day she went missing. yesterday, detectives released a 49—year—old man who'd been arrested on suspicion of murder. the sinn fein president, gerry adams, has said he will set

out a plan for a leadership change in his party at its conference in dublin this evening. mr adams, who is one of the most significant figures in irish politics, has led sinn fein since 1983. he's indicated he won't stand down immediately, but will talk about future plans. the government is considering a tax on single—use plastics that are used in packaging and polystyrene takeaway boxes. the chancellor, philip hammond, is expected to use next week's budget to announce a consultation on the measure to cut waste and pollution. an estimated 12 million tonnes of plastic enters the oceans each year, and residues are routinely found in fish, sea birds and marine mammals. earlier, i spoke to our business correspondent, joe lynam, about the proposed changes. i gotten an example of what is going

on. bubble wrap is one example, and these famous polystyrene bags, and many of us who enjoy a few drinks littermates have enjoyed food out of that. because they can take decades, even centuries to degrade, they are talking about the consultation whereby they establish how they could impose a tax, how much whether it would even work, if they would do what they hope to achieve, in other words do their bit the environment, earn a bit of money for the treachery and maybe cut down on some of our eating habits that are the good for us. we don't know how long this consultation will last, and they can tell us, the government, how much they want to get out of this. it is something we expect to hear from the chancellor when he announces the budget on wednesday. what is the initial reaction been to this consultation and possibly some for tough —— possibly some form of

tax. greenpeace have said it is great the ball is rolling, they have waited a long time for this. many states in the united states have already banned polystyrene boxes, including the state of new york. but they welcomed the measure that the government is at least making a start. there is a lot of water needs to go under the bridge before we can establish if they will apply the tax. the people that might users polystyrene boxes possibly earn less than the national average. proportionally they would be paying more out of their income if they we re more out of their income if they were to put this tax on these boxes. we are talking 5p, iop, not a huge amount of money, but in proportion it would be more. malcolm young, co—founder and guitarist of the australian rock

bank ac/dc, has died aged 64. he founded the group in the 1970s with his brother, angus, retiring more than a0 years later to receive treatment for dementia. the band were best known for albums highway to hell and back in black, and were inducted into the rock and roll hall of fame in 2003. in a statement on the group's website, they described malcom as ‘a perfectionist‘, ‘with enormous dedication and commitment,‘ who was ‘the driving force behind the band'. emergency services have been called to cardington, in bedfordshire, after the airlander a10 airship, the world's longest aircraft, fell from the air. the airship wasn't flying at the time, as it was secured to its mooring mast, and there was no—one on board. but one member of staff, has received minor injuries after the incident. only yesterday, the airlander 10 had completed a successful test flight. today marks 30 years since the king's cross fire,

when 31 people lost their lives in the worst blaze in the history of the london underground. it started when a single match was discarded on a wooden escalator. as tom edwards reports, the tragedy brought about monumental changes in fire safety. thousands use this escalator every day and many don't know this is where the worst fire in the history of the tube started. stewart button is now retired, but nearly 30 years ago he was one of the first firefighters to arrive. we were laying out the equipment and it was then that we heard or started hearing all the screams. i thought there must be loads of people down there. just scream after scream. 30 years on and this official report still makes terrifying reading. it describes how this station, full of commuters, turned into a furnace.

it also outlines how the response from the emergency services was hampered, due to a breakdown in communication. and there was a lack of knowledge of the station layout. even 30 years on, for the families of those who died, the memories are still raw. you cry a lot... for a long time. it's a shocking thing and everytime something like that happens, whether it's grenfell or a terrorist incident, you think of all the people who are getting that news and the shock of it. the following enquiry led to a huge change to the tube and the fire service's safety regimes. among the many recommendations, wooden escalators should be removed, smoking should be banned and heat detectors and sprinklers should be installed.

and crucially, the emergency services should be able to communicate with each other underground. most of the recommendations have since been implemented. these types of exercises are now part of training and legislation ensures minimum staffing levels on deep line stations. there isn't a month goes by in myjob where we don't reference the king's cross fire. it had such a phenomenal and beneficial effect on the organisation. so out of a desperate tragedy, good things have actually come. the unions say they will resist anything that they think could compromise safety. and these changes only happened after the deaths of 31 londoners. an original drawing of the comic book hero tintin has sold for nearly half a million dollars

at an auction in paris. the artwork, by the belgian artist herge, was published in 1939 as the cover of a story called "king ottokar‘s sceptre". an original strip from album the shooting star fetched 350,000, but a copy of the tintin adventure destination moon, signed by us astronauts, failed to find a buyer. paul gravett, a comics historian, told me more. classic character. it's been, of course, revived recently in the peterjackson movie. there will be no more new tintin stories, but the great classic albums he already created in his lifetime are still being widely read. and i think the real interest in buying the artwork, the original works on paper, the ink on paper artwork by herge, is that there's only of those. there are a couple of hundred, or a couple of thousand of the rare first—edition albums that have survived. as you've reported, the destination

moon album didn't sell. it's nice, even with the signature from the astronauts. what does allure collectors and investors, of course, is that this is the one and only drawing. it's a particularly lovely one because it's in full—colour. there's been a huge boom in collecting comics art and this is puzzling the art world, the fine—art world. it's probably explained because people with money who want to buy something that mean something to them, they don't necessarily want to buy an old master, a van gogh or something. it's probably out of their price range, it also probably doesn't mean so much to them. and similarly, they're also a little bit distrustful of contemporary art. i mean, will it be worth anything tomorrow, or in a few years' time? they buy something that means something to them, which is this artwork from these wonderful comics. why didn't the astronaut version sell? why do you think that is? as i say, i think it's because there are quite a few copies of that one. it's a late album, it's not such a rare... it's not a first edition, necessarily, it's not such a special, collectable item.

but the whole area is really booming. this is a good price, but tintin works have gone for more than this in other auctions. something like almost a0 million euros of artwork, of comic artwork, sold last year in various auction houses including the major ones like sotheby‘s and christie's, in paris. and, for example, just recently, last month, an asterix album cover — asterisk, the famous french comic character — sold for one and a half million dollars, or euros. it's the same thing, near enough. so this market really is expanding considerably. the weather now, with tomasz schafernaker. the weather has been very grey and resilient and the south. it will be cold tonight, meaning that sunday morning will be frosty across the uk. in the short term we still have some damp weather in the far south, quite a bit of cloud in central areas, but the north is already a

lot clearer. by midnight, temperatures will be dropping like a stone. by the early hours of sunday morning, in the countryside, temperatures could be down to —5 in the north, and freezing or below in london. in cornwall and devon it will be a little bit milder overnight. tomorrow, fine weather in central, eastern and northern parts of the uk, but a weather front with some light rain getting into the far west of the uk in the afternoon. monday is looking damp and soggy in many parts of the uk, a little bit colder in scotland. hello, this is bbc news. the headlines: zimbabwean soldiers prevent demonstrators marching on president robert mugabe's house, as tens of thousands of people are on the streets, calling for his resignation. richard leonard is the newly elected scottish labour leader, replacing kezia dugdale who stepped down in august. police and air accident investigators search for clues

as to why two aircraft collided over buckinghamshire, leaving four people dead. hundreds of volunteers assist dorset police in searching for missing teenager gaia pope, who disappeared 11 days ago.