welcome to bbc news. i'm mike embley. our top stories: four minneapolis police officers are sacked over the death of an african—american man pinned down in the street by his neck. for the first time, twitter labels one of donald trump's tweets as "misleading". a special report from a london intensive care ward and the doctors who fear a second wave of coronavirus. i suspect that their cases willjust rapidly rise again. and costa rica becomes the first central american country to legalise same—sex marriage. we talk to the country's president.

to the united states first, and an investigation is under way in minneapolis into the death of another black man in police custody. four officers have been sacked. the victim has been named as george floyd. video has emerged showing a police officer kneeling on his neck, in the street, for some considerable time. this report from nada tawfik contains distressing images. a disturbing scene caught on camera by witnesses incensed over the police‘s actions. bro? the 10—minute video shows george floyd pleading with officers, who have him restrained on the ground. one of them using his knee to pin the man down by his neck. clearly in distress, he tells the white officer he can't breathe and is in pain. the crowd tries to help and grows increasingly concerned and frustrated. when george floyd appears motionless, bystanders question

why he isn't being given urgent medical attention. seven minutes into the video, an ambulance arrives. he's put on a stretcher — still handcuffed — and taken to hospital. at a press conference, the minneapolis police department offered their version of events. they said they were responding to a crime and that the man appeared to be under the influence. he physically resisted officers. officers were able to get the suspect into handcuffs and officers noticed that the male was going into medical distress. officers called for an ambulance, he was transported to hennepin county medical center, where he died a short time later. mayorjacob frey said that four of the officers involved have now been fired after initially being put on paid leave. the fbi is also investigating the incident. being black in america should not be a death sentence. forfive minutes, we watched

as a white officer pressed his knee into the neck of a black man. for five minutes. when you hear someone calling for help, you are supposed to help. so, officers failed in the most basic human sense. the viral video quickly sparked outrage. yesterday, what we saw was a black man who was lynched. right? they didn't use rope, he used his knee. and that black man, mr floyd, said "i cannot breathe." minnesota prides itself on being progressive and being the north. but this is thejim crow north,

and we demand justice. put your hands behind your back! i can't breathe! for many, this is a case of history repeating itself. millions protested in 2014 after eric garner, an unarmed black man in new york, died after being restrained by police. his repeated plea of "i can't breathe", also captured in cellphone footage, became a rallying cry at demonstrations against police brutality against african—americans. there are sometimes investigations, but many feel there is rarely any accountability. nada tawfik, bbc news. twitter has for the first time prompted readers to check the facts relating to a tweet by president trump. the social network has placed a notification under a post in which mr trump criticises plans to expand the use of postal ballots in november's election, which he says

will lead to voter fraud — against all the evidence. the notification directs readers to a page with news articles and information from fact checkers debunking the claim. our technology reporter zoe thomas has more on this now. there a lot of people saying better late than never. of course, they're complaining about some of the tweets that the president has written in the past which they say already violated twitter‘s policies. but what's happened now is twitter has set new rules, where it says it won't remove comments and block the users who write certain things, but instead when tweets might be misleading or give the wrong information, it's simply going to direct users to correct information, to explanations about what's being said. and this was a fairly successful policy for twitter when it came to information about covid—19 and misleading medical information by having a little notification on the bottom, get the facts about covid—19, they were able to spread correct from the world health organization. and now it's trying that out with election news and it's caught up the president in this

new policy. there was a lot of speculation that president trump might get caught up but twitter hasn't acted in the past, so it's impressive to the company taking steps now. just briefly, zoe, there's something slightly cynical about what twitter is doing. any other user who wasn't the president would have had their account closed a long time ago for what the president has put up. but it brings twitter enormous publicity and attention? it's a real balancing act they have to do. president donald trump has more than 8 million followers on twitter. in fact, after the company decided to label his tweets as potentially misleading, he went on to twitter to say that it was stifling his free speech. so the company on the one hand really wants to hold onto him as a user and it has said in the past president trump and other world leaders who have made misleading or even aggressive comments in the past, that they can make those comments even though

they violate twitter‘s policies, because they're politicians and world leaders and it's valuable for people to see what they're saying and for free speech to go on that way. it's got to find a way to balance some of the things he's making, some of the claims that are potentially false or harmful, while making sure he stays online because they want to keep him and his followers on their platform. so, zoe, is there a reasonable expectation that twitter will be dealing more aggressively with posts that are way over the line with an election coming up, of course, in the states? yes, of course we've seen a lot of hostility on social media, notjust twitter, but other platforms as well. and they're going to have to find a way to deal with this. but what's going to be interesting is whether the president's aggressive stance towards twitter because of its actions leads to twitter maybe backing down or being cautious as it decides which comments it labels going forward. they're going to have to make sure they have an open platform so people can comment — they don't want to be accused

of creating more division in the us, where there is already quite a lot of division, but they don't want people to be so mad at the platform that they decide to use it, then they become irrelevant and they stop bringing in the ad revenue that keeps the company going. it has a lot of things to balance and i wouldn't expect twitter to be too aggressive with the president going forward. though e—commerce in san francisco for us. —— zoe thomas. let's get some of the day's other news: the uk has become the latest country to allow the use of the drug, remdesivir, to treat hospital patients affected with covid—19. early indications show that it may be able to cut recovery time by about four days. it is likely to be used on less severe cases, before patients need respiratory support. the uk follows the us and japan who both gave emergency authorisation to use the drug earlier this month. the french president, emmanuel macron, has announced a plan to invest more than $8 billion in the country's car industry, which has been badly hit by the coronavirus. much of the money will be spent on modernising factories

and encouraging motorists to buy electric cars. in return, the two main manufacturers, renault and psa, have promised to focus production within france. jk rowling has released the first instalment of a never—before published children's book that she wrote over a decade ago. the harry potter author says chapters from the fairytale called the ickabog will go online every day untiljuly 10th. there'll be no charge to access the book, which the writer says is to help children in lockdown. costa rica has become the first central american country to legalise same—sex marriage. a lesbian couple was the first to tie the knot in a ceremony that took place just after the new law came into effect on tuesday. more couples have already followed them. legalizing gay marriage was a campaign promise by president alvarado. he said the country now recognised the rights that gay and lesbian people had always deserved. same—sex marriage has faced some resistance. and recently 20 lawmakers attempted to delay the law. earlier, i spoke to the president of costa rica and i started asking him about the internal opposition to this change.

indeed today is a historic day in costa rica, because it's about human dignity and human rights, not only about one specific right, defending human rights, defending all of them. so that is why we are happy as a whole. i was looking at the list. of course you know far better than me, there were other moves to legalise same—sex marriage in uruguay, ecuador, brazil, parts of mexico. but costa rica is quite conservative. i think that's related mostly to democratic institutions. it passed through the constitutional court. so,

making same—sex marriage legal in costa rica, recognising it asa human in costa rica, recognising it as a human right. many people in the past years, the lgbt community in costa rica, not only were they bullied decades ago, but they were also persecuted even by police, having this recognition now. so to have the security of the law for the families and the children, this is to recognise human dignity in front of the whole of society and is a strong message of equality. mr president, it was a close—run thing. just two weeks ago, more than 20 lawmakers tried to stop this happening, tried to put it off for 18 months. and it was never agreed in parliament, as i understand. the constitutional court ruled the ban on same—sex marriage was unconstitutional and discriminatory. do you expect challenges

in the future? i do expect that, but that's the challenge is all of the open, free societies face. progress in democracy is not something we should take for granted. we should always defend human rights and that message is not only for costa rica. in today's world and in the context of multilateralism it's a reminder we need to keep fighting for free, open societies, democratic societies, we cannot take for granted human rights. i think that is a strong reminder in costa rica, but also around the world. stay with us on bbc news. still to come: doctors at one of london's biggest hospitals have told the bbc they fear a second wave of virus infections once the country's lockdown ends.

in the biggest international sporting spectacle ever seen, up to 30 million people have taken part in sponsored athletics events to aid famine relief in africa. the first of what the makers of star wars hope will be thousands of queues started forming at 7:00am. taunting which led to scuffles, scuffles to fighting, fighting to full—scale riot, as the liverpool fans broke out of their area and into the juve ntus enclosure. the belgian police had lost control. the whole world will mourn the tragic death of mr nehru today. he was the father of the indian people from the day of independence. the oprah winfrey show comes to an end after 25 years and more than 4,500 episodes. the chat show has made her one of the richest people on the planet. geri halliwell, otherwise known as 'ginger spice,‘ has announced she has left the spice girls. argh, i don't believe it. she's the one with the bounce, the go, girl power. not geri, why?

this is bbc news, the latest headlines: four police officers in the american city of minneapolis have been sacked. they were being investigated over the death a black man who was pinned down by his neck. twitter has, for the first time, placed a fact—checking warning underneath a tweet by president trump. a group of experts from around the world have published guidelines they say will help governments and companies who are developing coronavirus contact tracing phone apps. at least 21 countries, including the government here in the uk, and several us states are working on the technology that could tell people if they'd possibly be in contact with someone with coronavirus. professorjeffrey kahn is from john hopkins university and is the leader of the project and report which is looking at the ethics and governance around contract tracing of people who have covid—i9. he's in baltimore.

thank you very much your time. tell us how this will work and what your hopes are for it. sure. we well, collected a group of 26 experts from across the world, including some from the uk, and saw there was a gap in how to think about ethics and governance of these new technologies, as you said in your intro. many countries around the globe are trying to figure out how to use tools like digital contact tracing to help us find our way out of the pandemic, and with all the technology work, it didn't seem like there was enough ethics and governance work being done so we and governance work being done so we set up a rapid response effort, we work for a month to produce a report, released today. how confident are you it will be taken up in a widespread way? you look at several american states where people regard lockdown as a massive imposition by an overbearing central government stop me there is a sacrifice of privacy

here, do you think people will wear it? it's a great question and it's something we need to find out the answer to. there's also a lot of sacrifice in being kept at home and people need to understand that for some sacrifice in privacy, as you put it, we may be able to gain ability to move about like we are used to. that balance is what we need to better understand. we can't know what that balance is until we begin to implement, and that requires the input of not only tech companies and governance and employers and institutions but the public too. this will be a learn as you go process. how do you make sure the public and our elected representatives decide the guidelines for it and not say no, say, google and apple? that's exactly the point of this report. as i'm sure your viewers know, apple and google have got together and effectively decided the rules.

we have think the public has a role to play, in fact an important role to play, because if they don't accept the rules in the way the apps are using they won't download them and use them on their phones and adopt them, and they won't have the public both goals we think they will serve. we think it's up they will serve. we think it's up to they will serve. we think it's uptoa they will serve. we think it's up to a combination of things, which includes the tech companies but also the public as well, so we get this right. professor jeffrey as well, so we get this right. professorjeffrey kahn, as well, so we get this right. professor jeffrey kahn, thank you so much. thank you for having me. doctors at one of the hospitals hit hardest by coronavirus in the uk have spoken of theirfears of a second peak, as lockdown restrictions loosen. the bbc has been given unprecedented access to the royal london hospital. hundreds of people with the disease have died there, those from ethnic minority backgrounds particularly affected. medical staff say a rise in cases is now inevitable, as people have more and more contact with each other. clive myrie reports. it's in times of crisis we find out who we really are. i've felt broken on many occasion.

and i think a lot of my colleagues have. when souls are laid bare. in this time of coronavirus, one hospital, and one community, reflect on these troubled times. coming upforair, to reveal their souls to us. machine beeps we saw the fragility of life. this guy's not going to survive the night. better to call the family, i think. we're going to take out your tube now. we saw its strength. perfect. well done. how's that feel? yeah? and all the while, one fear looms — another peak of infections to rival the first. we're on the back foot again. are you expecting a second wave? yes. i mean, i have to say yes, because i think once

the lockdown is relaxed, people, of course, are going to have more contact with each other. so that's the way this is going to spread. then, as our interview ends, he's called away. i'll be two minutes. his two minutes turn into several agonising hours. i can see you're working hard to ventilate him. we had permission from all the patients or their families to film. and krishnapillai yogan's vital signs have worsened. he's just 55. this is going to cause a bit of a problem here. yeah, and again. go, go, go. the professionalism of the team is stunning. years of experience are gathered around this bed. as the duality of time, the drifting, oblivious patient, and the rush to save his life merge into a tableau for our times. so, there's a final roll of the dice.

so, you guys lift him up, i'll push the pillows down, yeah? this is a last resort. maybe by turning him onto his front they can force air into his lungs, oxygen into his body. it's all they can do. 0k. ready, steady, go. his lungs are just getting worse, and more inflamed again. and you've been preparing to talk to his family? yes, that's right. just to let you know... imagine this stress for the team, multiplied every day for weeks. now you understand what the peak of the pandemic was like. are you all right? my face is all marked. well, you've just come off shift. sister carleen kelly bore witness to those dark days. it consumes you. it's what you think about when you go to bed. it's what you wake up... you're preparing for your next shift. you're relieved that the previous shift is over. you're sad. it's a huge emotional burden.

sometimes, it's hard to find light in the darkness. but you're about to witness what medicine can do. i'm going to take out your tube now. this is one of the defining moments in an intensive care unit. give me a big cough. big cough, that's it. when a patient‘s ventilator tube is removed. it's a procedure full of expectation. and dread. i'm going to pull the tube, as you do that, ok? will it work? nice big cough again. he's grimacing as the tube inches up his throat... man gasps ..and finally leaves his chest. how does that feel? everything's ok. the heavy breathing of a man given a second chance.

but there are other defeats. sadly, that evening, krishnapillai yogan died. another soul lost. clive myrie, bbc news. the physical and emotional burden carried by the staff of the royal london hospital. clive myrie reporting with producer sam piranty and cameraman davy mcilveen. the us house of representatives is expected to vote on wednesday on legislation aimed at combating china's mass detention of minority uighur muslims. if approved, it will be sent to president trump to sign into law or veto. the move comes amid steadily worsening relations between the us and china over the coronavirus, with washington blaming the government in beijing for the pandemic. let's speak to nury turkel, a newly appointed commissioner at the us commission for international religious freedom. and he himself an uyghur—american. good to talk to you. how

significant is this bill and what chance of it going to law? thank you for having me. this bill is significant for multiple reasons. the number one reason is no country, no—onein one reason is no country, no—one in the human history for the uighur people, has done anything remotely close to what's happening in the us capital. this bill has received 406 votes in the earlier version in the house, and the current version has been voted with over 60 co—sponsors with unanimous consent. it has a very good chance to be passed in the house tomorrow. do you expect it to be approved or vetoed by the president? in light of the current political environment in washington, which is very supportive of the uighur human rights, specifically in the last couple

of years, the situation, the ongoing humanitarian crisis, the uighur have received bipartisan support. the executive branch has been very active, with a number of significant decisions, including the these are banned, affecting business and government entities —— visa ban. last year, recently. the secretary of state, the members of congress, members of the executive branch has been speaking out against the ongoing crisis in the uighur region that china calls xinjiang but we call east tu rkesta n. we are tight on time so one crucial question, this bill, amongst other things, would impose sanctions on name to chinese individuals in the government and would require the state department in the us to provide a report on human

rights violations. how do you think china will react to this? relations with china around the world a re relations with china around the world are so fraught at the moment. the chinese government has given enough time, almost two years has given enough time, almost two yea rs now. has given enough time, almost two years now. the us government has been discussing this sanction under the global magnitsky act for almost two yea rs magnitsky act for almost two years now, but the chinese government has not, you know, corrected some of the policies. the camps are still there, they are transporting the detainees in inland assembly lines, the forced labour has returned. the chinese government has lost almost two years to correct its past and ongoing mistakes. this will correct the chinese government's policies that have been perceived and described as with genocidal intent. nury,

thank you so much for talking to us, i'm sure we will talk again on this. thank thank you for having me. nury turkel there. thank you for watching. hello there. there is plenty of dry and very warm weather in the forecast for the next few days. now, during tuesday, the very highest temperatures were found across eastern and southern parts of the uk, 27 degrees to the west of london. it was a bit cooler further north and west — not an awful lot cooler — but actually as we go through the next few days, we're going to see this area of high pressure, which is really dominating the scene, shifting a little further eastwards. now, the winds out ofthe high pressure flow in a clockwise direction. so as the high shift eastwards, that will allow us to waft warm air northwards across just about all parts of the uk. but we start wednesday morning with the very mildest conditions across the south — 13, 14 degrees in cardiff and in london. not quite as mild further north. but as we go through the day ahead,

we're expecting lots of fine weather, some spells of sunshine, a bit of patchy cloud towards the south and east of england, and certainly more cloud into northern ireland and scotland. and that cloud mayjust start to fringe some patchy rain in across the far west. those temperatures getting up to around 17 degrees there in glasgow. once again, 24 or 25 across parts of south wales, central and southern parts of england. now, as we go through wednesday night into thursday, we will see some outbreaks of rain pushing across the northern half of scotland, a weak frontal system pushing through. further south, it's dry with some clear spells on what will be a mild night for most — lows of six to 12 degrees. any early rain across scotland or nort—heast england will clear very quickly on thursday. and then, as you can see, increasing amounts of sunshine. bit of patchy cloud here and there, yes, but largely sunny skies. and at this stage, i think the highest temperatures will be found across western areas. so liverpool, cardiff, 25 degrees, but glasgow up to 22. a bit cooler for some north sea coasts. now, as we get into friday, remember, when you look at our maps and you don't see cloud, that means we're expecting sunshine. a lot of blue sky overhead on friday.

again, those temperatures, 24, 25, 26 degrees. parts of south—west scotland getting into the middle 20s. still a bit cooler for some of those north sea coasts with a flow of air off the sea, but as we head into the weekend, high pressure does remain dominant. it should fend off this frontal system. yes, we mightjust see a little bit of rain fringing into the far north—west of scotland at times, but generally speaking, it's a dry weekend. and widely, it will be very warm, with those temperatures into the 20s.

this is bbc news, the headlines:

four police officers in the american city of minneapolis have been sacked following the death of a black man who was arrested and pinned down by his neck in the street. video of the incident shows the man, george floyd, groaning and repeatedly telling officers that he can't breathe. twitter has for the first time prompted readers to check the facts relating to a tweet by president trump. the social network has placed a notification under a posting in which mr trump criticises plans to expand postal ballots — which he says will lead to voterfraud. doctors at one of the hospitals hit hardest by coronavirus in the uk have spoken of their fears of a second wave of infections as the country's lockdown restrictions loosen. clinicians at the royal london say they are better prepared than four months ago but are still very concerned.

it's