welcome to bbc news. our top stories: mexico city's mayor promises a full investigation into the rail bridge collapse, which has killed at least 2a people. translation: there will be an investigation - by the attorney—general�*s office as well as independent experts so that we can find out the whole truth and know what happened. derek chauvin, the police officer convicted of murdering george floyd, requests a re—trial alleging misconduct by both prosecutors and jurors. pressure grows for a national lockdown in india as official coronavirus cases pass 20 million. president biden sets ambitious vaccination targets so americans can celebrate independence day.

our goal byjuly 4th is to have 70% of adult americans with at least one shot. we begin in mexico city — 2a people dead, many more injured, a rail bridge collapsed and a perilous rescue effort underway. that is the toll from one train plunging into a city street after the overpass simply gave way under the train�*s weight. the exact cause of the incident is still to be determined but officials said it appeared that a girder had given way on the bridge at the olivos station, in the south of the capital. local residents say that the bridge had cracks in its structure, believed to have been caused by an earthquake

four years ago. and the overpass itself was only built in the last ten yea rs. you may find some of the images in will grant's report distressing. the scene of devastation at mexico city's subway was reminiscent of one of the city's many earthquakes, but this was not a natural disaster, rather it was a man—made one, on the newer stretch of subway track in the capital. line 12 was heralded as the future of the city's public transport system when it was inaugurated in 2012. now its carriages and the city government's reputation hang by a thread. the security camera caught the terrible moment of impact, when tons of cement and gnarled metal came crashing down onto the cars below. at that time of night, most of those killed will have been workers returning home after a late shift. their families anxiously gathered at the scene, desperately trying to make sense of it all.

translation: lily daughter—in—law called us. she was with my son and she told us that the structure fell down on top of them. translation: my brother came with his wife and they managedl to get her out but he was crushed in there. we do not know anything. they do not give us reports. now they have to get him out but who knows how long it will take. by morning all eyes turned to the mayor, claudia sheinbaum. she insisted a full structural check had been made as recently as last year. translation: on the entire line, on the entire line, - and i think we should not speculate and that is why there will be an investigation by the attorney general�*s office as well as independent experts so that we can find out the whole truth and know what happened. but that is not an answer that will satisfy the victims�* families or most residents of mexico city, local people who complained for years

that the construction of line 12 was not up to code and that cracks had appeared following a recent earthquake. an investigation will determine whether such warnings were ignored and by whom but those questions will have to wait, at least for now, as this vast city mourns the loss of life in one small corner. will grant, bbc news, mexico city. deborah bonello, a senior editor at vice news, based in mexico city, has more details on the investigation. mayor sheinbaum said that the investigation will be done by an international company, a norwegian company, which i think speaks to the general distrust that there is in mexico of the country's institutions and leadership, so it will be interesting to see what the international investigators make of this. as will mentioned

in his report, the same thing happened when the 2017 earthquake struck and a lot of buildings fell down. there is a reckoning around the regulations and supervision over the construction of infrastructure projects. now the linea rossa that was the part of the line that fell down was actually sort of problematic from the start. it was meant to be one of these lines that connected mexico city's outer boroughs with its central boroughs because millions of people commute into the city every day to do typical working—classjobs, like domestic helpers, nannies, construction workers, people who work in fast food restaurants, but i thinkjust a year and a half after the line had been finished it was closed down because of problems and now there is a lot of finger—pointing going on,

about whether it was the commercial companies involved and the contractors or whether it was an oversight in terms of the regulators, and the people who oversee the planning of infrastructure projects. i mean, it is worth saying also that president amlo has said that nothing will be hidden and he has also been the mayor of mexico city. he was the mayor city, i believe, in 2002 until 2005. and his current foreign minister, marcelo ebrard, was also governor of mexico city and oversaw the building of the line. so a lot of the people who have overseen these major infrastructure projects in mexico remain in power today the official number of coronavirus cases in india has now topped 20 million. there's been no let up in the rate of infection, with more than 300,000

positive tests recorded for the 13th consecutive day. there are still reports of oxygen shortages in the capital, delhi, and the army has been asked to set up medical facilities to take the strain off hospitals. devina gupta sent this report. desperate hope. that's what family members in this hospital in delhi are holding onto. it is a fight for life—saving oxygen that some are losing fast. translation: | came - here because a man died. his death freed up a place and oxygen for my mother. translation: they put us - in a shed, when she needs to go to intensive care. this oxygen bottle came from my house. we bought it ourselves. as india crosses over 20 million infected cases, many hospitals like this one, which were first overwhelmed over the weekend, are struggling with scarce resources. translation: the situation is really critical, _ there are no beds available.

we are under pressure — the doctors, the nurses, the orderlies, even the patients — we are all under pressure. covid is not sparing sport either. the massively popular indian premier league cricket tournament has been postponed after at least four players tested positive. it's a huge disappointment here for millions where cricket is almost a religion. however the goal of saving lives has proved too important for india in her darkest test for decades. the ultimate fight for the country is to get oxygen and medicine supplies for millions, and fast. india is getting aid as countries continue to help but the challenge is speedy distribution and there is not a minute to waste. and that is why tens of thousands are rushing to get a vaccine wherever they can find one. but there's a shortage of these jabs too. translation: it was very difficult. - i could not get an

appointment right away. i kept checking online and now there is a really long queue here. it's not really very easy right now. i came in a little bit early, at around 9:30am, so around six hours. for now, the government of narendra modi continues denying any shortage of oxygen and vaccines, and that's where india sees its biggest challenge as the covid crisis head towards a chaos. devina gupta, bbc news. to syria and state media has reported air defences intercepted an israeli attack on several areas in northwestern syria. a series of explosions were reportedly heard near the coastal city of latakia. some reports suggest the target of the attack could have been a plastics factory. syria said the israeli attack had also hit the nearby town of hifa. there's been no independent confirmation.

derek chauvin, the white former minneapolis police officer convicted last month of the murder of the black man george floyd, has requested a new trial. his legal team has filed court documents alleging misconduct by both prosecutors and jurors. last month, chauvin was found guilty of second and third—degree murder and manslaughter. he is yet to be sentenced. for more on this i've been speaking to matt sepic, a journalist with minnesota public radio, whose team covered the trial. as you mentioned, eric nelson, chauvin�*s defence attorney, filed a request today for a retrial, and he is citing multiple grounds, prosecutorial misconduct among them, but he does not get into a lot detail. he also mentions misconduct on the part of the jury and the fact that there was so much publicity and thatjudge peter cahill, who presided over this case,

refused requests from the defence to move the case out of minneapolis because of all of the pre—trial publicity. that issue in particular sounds like that will have been an issue that had been considered before, so what are the chances of considering the same information and coming to a different conclusion? it does not seem likely. this filing today really was not a surprise, it is a prelude to an expected appeal which would happen after chauvin is a sentenced on june 25th. this is a common occurrence whenever there is a trial and a verdict that does not go the way of the defence, the defence will request a new trial as part of the process, and it really is an expected move on their part.

stay with us on bbc news, still to come: the rising number of covid cases recorded on the world's highest mountain. i, nelson rolihlahla mandela, do hereby swear to be faithful to the republic of south africa. after six years of construction and numerous delays, the channel tunnel has been formally opened by the queen and president mitterand. the tunnel is not yet ready for passengers and freight services to begin. for centuries, christianity and i islam struggled for supremacy. now the pope's visit symbolises their willingness to coexist. - roger bannister became the first man in the world to run a mile in underfour minutes. memories of victory as the ve celebrations reach their climax. this night is dedicated i to everyone who believes in a future of peace and freedom. -

this is bbc world news, the latest headlines: mexican authorities promise a full investigation after at least 2a people were killed in a train overpass collapse. mountaineers and authorities at everest base camp in nepal say they are seeing rising numbers of climbers with covid—i9 symptoms and positive tests. they say they had received reports of 17 confirmed cases from hospitals in the capital, kathmandu. government officials have denied having any knowledge of covid cases at the base camp and have issued around 400 climbing permits for everest this season.

alan arnette is a mountaineer who reached the summit of mount everest in 2011. he also chronicles climing efforts there on his blog and has been speaking to climbers there about the situation. thank you very much for coming on the programme.— thank you very much for coming on the programme. thank you for havin: on the programme. thank you for having me- _ on the programme. thank you for having me- we — on the programme. thank you for having me. we will— on the programme. thank you for having me. we will boost - on the programme. thank you for having me. we will boost your - having me. we will boost your sound a little _ having me. we will boost your sound a little bit _ having me. we will boost your sound a little bit there - having me. we will boost your sound a little bit there but - sound a little bit there but hopefully we will get it back. i wanted to ask, first of all, you been trying to get to the bottom of exactly what is going on there. but he managed to find out?— find out? definitely this situation _ find out? definitely this situation started - find out? definitely this situation started off - situation started off incredibly bad. in early march as more teams came in and people that were tracking in got evacuated out and it seems like the entire season was coming to a horrible crescendo in late march but recently things have improved. so we have some — things have improved. so we have some improvement, i things have improved. so we i have some improvement, what things have improved. so we - have some improvement, what do you make of the transparency though, the ability to get detailed information out? i think that the nepal government

definitely could do a much betterjob of providing more transparent information. as you noted in the intro they have been denying that there are any cases at all in spite of overwhelming evidence and first—hand reports of people have been evacuated from base camp into kathmandu and have tested positive not once but twice. i tested positive not once but twice. ., . ' . twice. i notice the difficult question but any kind of i question but any kind of flavour for the numbers involved here, percentages of people affected? it is involved here, percentages of people affected?— people affected? it is really hard due — people affected? it is really hard due to _ people affected? it is really hard due to a _ people affected? it is really hard due to a lack - people affected? it is really hard due to a lack of - hard due to a lack of transparency and also nepal is basically issued a censorship ban on all communications of bad news, including photographs of the bodies or the remains of climbers because they don't want to be embarrassed like they were in 2019. as a result, we aren't seeing alan transparency coming from the operators either. but i would say with a gas, somewhere between a0 — 60 people who had covid have been evacuated in what for more another. so where do ou what for more another. so where do you think _ what for more another. so where do you think this _ what for more another. so where do you think this leaves - what for more another. so where do you think this leaves the - do you think this leaves the climbing season than? that is

really the _ climbing season than? that is really the interesting - climbing season than? that is really the interesting part - climbing season than? that is really the interesting part of l really the interesting part of this is that at this point people are continuing to climb are going through the normal processes of acclimatising and one of the good news here is that the jetstream is staying off the summit which means the winds are going to be really low for the next couple of weeks. that way the three — 600 climbers going up including their sherpa support and potentially have the same types of cues they had in 2019. asian of cues they had in 2019. alan arnette, great _ of cues they had in 2019. alan arnette, great to _ of cues they had in 2019. alan arnette, great to have - of cues they had in 2019. alan arnette, great to have your. arnette, great to have your expertise. thank you for coming on and talking us through that. you that, thank you. —— you bet. in the us president biden says he wants 70 percent of adults in the country to receive a first dose of coronavirus vaccine by the fourth ofjuly. around 56 percent have already had one jab and a third have had both. two months from today, two months from today, families across the country are going to celebrate the ath ofjuly. our goal byjuly the ath is to have 70% of adult americans have at least one

shot, and 160 million americans fully vaccinated. that means giving close to 100 million shots — some, first shots, others, second shots — over the next 60 days. 0ur north america correspondent, peter bowes, talked me through the vaccine rollout. it's been doing well for a number of weeks and that ambition by independence day is well within reach. if you look at the pace of the rollout, and i think the big concern at the moment is just extending the age groups that receive the vaccine. he talked about children, especially those aged between 12 and 15. pending authorisation by the food and drug administration, expected at the beginning of next week, that agegroup of young teens should be eligible by next week to get the vaccine and that is significant, a group of about 17,000,000 young people.

it's been causing some concern around the country that in fact a number of new infections from children has been increasing to about 22.5 per cent. at least in those states that records those new cases according to age group. up from 3% at the same time last year. with children travelling more during the summer and back at school, there is a real impetus to get them vaccinated. the president announced a number of incentives, like free drop—in centres, more pharmacists, that kind of thing, so they are trying to make it easier for young people to get the jab. our thanks to peter bowes there. the drugmaker pfizer expects its revenues and profits to rise markedly this year as a result of increasing demand for its coronavirus vaccine. it comes amid a debate about whether drug companies

should be forced to abandon intellectual property rights to covid—19 vaccines to allow more countries to manufacture doses. courtney bembridge has the details. six months into the global vaccine rollout and only 0.3% of doses of have gone to people in low—income countries. in india, where coronavirus infections are spiralling out of control, less than 10% of the population has had theirfirstjab. it doesn't make moral sense for the majority of people to be waiting in line, dying, waiting for the vaccine, but worse still, new variants keep coming, the longer the virus remains anywhere in the world, the more variants that come that are resistant to the technology that exists, and we are back to where we were. the people's vaccine is a campaign to remove patent restrictions on covid vaccines and medicines to allow more countries to manufacture more doses. the world health organisation supports the plan along with south africa and india, and 100 countries petitioning the world trade organisation to waive protections on intellectual property.

the eu and uk say they will oppose the move. this is said to not have solved supply chain delays. pfizer says it needs 280 components from 86 suppliers in 19 countries. so even if you waive the patent it would take months if not years to replicate the complex supply chain. what i don't agree with is that waving ip rights will make any difference at all to accelerating the availability of vaccines at this time. and if anything in the future, it may actually dis—incentivise any commercial entity from getting involved in vaccines, and as much as we love them or loathe them,

the commercial entities have the professional resources to get a vaccine into final use. the top coronavirus adviser in the us, dr anthony fauci, warns it could backfire if it leads to long legal disputes. he says: the biden administration is expected to set out its position at a world trade organisation meeting on wednesday. courtney bembridge, bbc news. two years after the uk government set up a compensation scheme for the windrush scandal, campaigners say they're concerned about the low number of payouts. the windrush generation are people who arrived in the uk after world war ii from the caribbean. thousands were later threatened with deportation, and lost homes and jobs. our community affairs correspondent adina campbell has the story. anthony williams arrived in birmingham from jamaica

when he was seven. he laterjoined the army and spent 13 years serving with the royal artillery. but the former soldier says his biggest challenge has been more recently. unable to work and afford urgent dental treatment after wrongly being told he was in the uk illegally. he's now got new teeth, paid for by an anonymous donor who heard his story. back in 201a, i got a really, really bad mouth infection. my gums kept swelling up and the only way i could get rid of it was to start extracting my own teeth. you pulled your own teeth out? it took about three months to take most of my teeth out, the ones i've taken out now. he's still waiting for compensation two years after filling out an application. my first offer, remembering i was unemployed for five years, i lost myjob and they offered me £18,500. if i would have accepted that, it would have destroyed me.

more than 12,000 people have been given british citizenship or had their legal status sorted out since the government task force was set up following the windrush scandal. but there have been fewer than 500 compensation payouts so far, way lower than what campaigners were expecting. with so few applications, there are now questions over the length of time it's taking to process claims — on average 1a months. lawyers who've been helping some windrush victims say the delays are unacceptable. you've only had 2,500 applications and people are taking a year and 18 months to even get their first offers, so it says something is very, very wrong. the home office says it aims to process quickly as possible while carefully considering each person's circumstances and experiences.

and the value of all payments made through the scheme so far is over £6 million. in nottingham, veronica bell is trying to claim compensation on behalf of her father, who died injamaica in 2010. nathaniel blake wasn't allowed back in the uk after a family holiday, and later lost his sight and was diagnosed with prostate cancer. as far as he was concerned, he was a british citizen — always had been. he was invited here by the government to build up the country after the second world war. we just weren't able to afford the most appropriate medical interventions over there. you submitted your compensation claim two years ago. are you confident that you'll receive the money any time soon? it's not about the money, and there is absolutely no financial compensation that can right that, but the acknowledgement is very, very important to me, you know, and otherfamilies. adina campbell, bbc news.

the conservative leader of the original district in madrid has won a resounding victory after a bitter election. the leader of the popular party defy the socialist led central government by keeping madrid's bars and shops open during the epidemic. despite doubling her party's seats, they fell short of a majority and will need the support of the far—right vox. the socialist party suffer their worst ever result and the leader said he is leaving politics altogether. football — and manchester city have reached the final of the european champions league for the first time in their history. they beat paris saint—germain 2—0 in the second leg of their semi—final. that means they win the tie four—one on aggregate. city will play either chelsea or real madrid in the final that is it from me, plenty more on the website of course. if you're online, get me on

twitter. i am at lewis vaughan—jones and this is bbc news. goodbye. hello. it seems like everything is running late this spring, and now the april showers have finally arrived. there's nothing like an angry sky to get the weather watchers out. there'll be more like this during wednesday. sunshine, yes, in between the showers, but catch a shower — heavy, hail and thunder and it's going to feel quite chilly as well with the air coming down from the north. around an area of low pressure which may be some distance away now, but in its way, we have this northerly flow of chilly air, unstable air with the showers developing. cold enough for them to be wintry on hills as well. temperatures well below average, but make a mental note of this — it will look quite different by the time we get to this weekend, as i'll show you in a moment. we start wednesday with the return of frost possible in any cold rural spots, but particularly into parts of scotland and northern england, as you can see. whilst many of us will start dry and sunny, there will be scattered wintry showers in northern scotland

from the word go, into northern ireland, in parts of wales, some showers, too, and across the midlands, eastern and southern england. this zone here is where we're likely to see most of the showers during wednesday. some heavy with hail and thunder. there could be some gusty winds around the showers, although overall, the winds are lighter than they've been. and temperatures, well, they're not going to rise too far. we're just looking really at highs around 8—12 degrees celsius. so, some showers will continue into wednesday evening, perhaps flaring up across parts of northeast england, for example, again wintry on hills. another batch heading south across scotland overnight and into thursday. could well bring some snow to relatively low levels, so that'll be surprising if you see that falling on thursday morning. again, the chance of frost as the day begins. these showers will move on south into northern ireland and northern england. there is an area of cloud and rain flirting with southern parts of england. still something to play for in how much rain will fall here, so we'll keep you updated. in between the two zones of wet or potential wet weather, there'll be some sunshine.

another chilly start on friday morning, another day of sunshine and showers. the heaviest ones look to be focused across eastern parts, temperatures a little bit higher. and then, here comes some more rain. that's from another area of low pressure heading our wayjust in time for next weekend. that means the winds picking up and more rain moving in and as that clears, there'll be showers following. but the air is coming in from the south, so although it'll be windy, although it'll be wet at times, at least the temperatures will be heading up.

this is bbc news, the headlines: mexican authorities have promised that an investigation into a metro overpass collapse in the capital will be open and independent. at least 2a people were killed and almost 80 injured when a train plunged onto the road below. a perilous rescue effort is still underway. derek chauvin, the white, former minneapolis police officer convicted last month of the murder of the black man george floyd has requested a new trial. his legal team alleges misconduct by prosecutors and jurors and say the process wasn't impartial because of pre—trial publicity. pressure is mounting on india's government to impose a national lockdown as the country officially records more than 20 million covid infections. india's health system struggles to cope.