hello. thanks very much for joining us. novak djokovic is back in training, his visa is still valid and the prospect of a tenth australian open singles title lives on. but if it sounds like game, set and match to the serb, his court victory still doesn't guarantee that he can stay and compete. the country's immigration minister, alex hawke, could use personal powers at his disposal to revoke that visa despite the judge suggesting that mr djokovic did everything he could have done to comply with the rules for entry to australia. shaimaa khalil reports from melbourne. within hours of today'sjudgement, novak djokovic posted this picture on twitter, saying he was pleased and grateful that thejudge had overturned the visa cancellation. and despite all that has happened, he wants to stay and try to compete at the australian open. cheering and this is the moment his supporters found out about his victory. he won, djokovic won! what we saw today here in the court that the australian legal system is functioning, it is evidence—based, it is aboutjustice. yeah, i'm extremely happy, as is anyone, everyone - in the serbian community here. djokovic's family welcomed the news, but remained cautious about what would happen with his visa. i'm very worried, but i don't want to think like that. i just hope that it will stay like this, that he will be free and he will play. it's been a battle for all of us, it's notjust about novak, obviously. we've been defending him every possible way we could, because we know he's a truthful and rightful guy. while many in the tennis community believe djokovic was unfairly treated, some argue that meeting any country's vaccination rules will pose problems for him beyond australia. he would have to face several times those problems, so i think bottom line, he will have to get the vaccine. but for this time, for australia, he got the visa, and they flew in with all the best intention and having done all the works he should have done beforehand. thejubilant mood turned into chaos and confusion when it became unclear whether djokovic would be allowed to stay despite the court's decision in his favour. at one point, djokovic's fans thought they caught a glimpse of him, but they clashed with the police and were dispersed with tear gas. it's only a few days before the tournament djokovic has dominated is due to start, but his win in court doesn't seem to have guaranteed him a chance to defend his title. shaimaa khalil, bbc news, melbourne. a moment of history to report now. doctors in the united states have carried out the first successful transplant of a pig's heart into a human patient. be warned — the images you are about to see now of the operation are very graphic. the animal was genetically modified to reduce the chance of the organ being rejected. surgeons at the maryland medical center said the 57—year—old patient was doing well. the experimental operation was considered the last hope of saving his life. well, earlier i spoke to dr robert montgomery, who performed the first successful transplantation using a genetically engineered pig kidney into a human, who was on life support at the time. he is also himself a heart transplant recipient, with a genetic heart disorder and he hailed this latest medical breathrough. oh, it's a really big deal. it's a huge leap forward. and just explain why. well, it's really the first example of a genetically modified pig organ that's been transplanted into a living human. there's a lot of talk and effort into avoiding the rejection of the organ, and i know that's something that in your work, you've had to focus on as well. the early signs are good, but how much confidence can be gleaned from the first two or three days that this is really going to hold? well, really, what the first two or three days does is it tells you whether the organ�*s functioning, and so far, this heart appears to be functioning pretty well, although the recipient is still receiving some additional support through a pump called ecmo, which is being gradually weaned off so that the pig heart can fully take over. right, so we do have to be realistic than of the prospects of this working? yes, i mean, what this tells us is there was no immediate rejection, which has always been the concern with xenotra nspla ntation. in our work in september of last year, demonstrated that there was good news on that front, but there's a second wave of potential rejection that can occur at about two weeks after the transplant. so we'll be waiting to see what happens, you know, in the longer term. right, and i think that was a phase that you didn't reach with your own particular case, because it was a patient i understand who was on life support and deceased after a few days? that's correct, yes... right, ok. sorry to interrupt you there. tell me then — you are also the recipient of a heart transplant yourself, you have a genetic heart disorder. in terms of what this might mean and how many people are going to benefit from it, you must be feeling this very personally? i am, i am indeed. i mean, it's new hope for my family and other individuals who suffer from heart disease, that there will be a greater supply of organs because each year about 6,000 people in the us die waiting for a transplant. so this could end that shortage. but are you saying that we could get to the point where you might say to a patient, "yes, we've got a transplant for you," and it won't matter if it's a pig heart or a human heart? well, that's a long way off, but, yes, i believe that that will be the case, but we're talking about maybe ten years from now before that sort of scenario would be realistic. and what is it about pigs — i mean, what is it that makes them so compatible, i suppose, with humans? yeah, well, there are many things. first of all, the organs are about the same size as human organs, and there's also the fact that they're plentiful, they're used as a food source, they're used for valves and pharmaceuticals, so there's good acceptance by the public for the use of pig organs. that's not the case with primate organs, which are actually closer to human. i do have to ask you, you'll know, there are plenty of people who would have a moral, ethical perhaps issue with this sort of operation. what do you say to them? i mean, i think if you're in the shoes of the person who's going to die waiting for an organ, you would understand that this is a really important thing. you were certainly in that situation, and thank you very much indeed for sharing your expertise with us, doctor robert montgomery. thank you so much. for most people, "bring your own booze" is a pretty clear message, but that is what was on the invitation sent out to around a hundred people to a gathering at downing street in may 2020 when a covid lockdown was still in place. the invitation was issued by a senior member of borisjohnson�*s staff and it's thought around 30 attended, including the prime minister and his wife. the latest revelation follows a barrage of criticism mrjohnson has faced over alleged parties in government offices during covid lockdowns. our political editor laura kuenssberg has the latest. the principle private secretary's job is in the shadows, organising the lives of the public and powerful. martin reynolds�* role was not, you may think, to organise a party during a lockdown. an invite leaked to itv news from behind the black door sent to around 100 of number ten's staff. the prime minister today declining to get into the details of any such socialising. all of that, as you know, is the subject of a proper investigation by sue grey. so have you already been interviewed by sue grey, and if not, do you object to her questioning you again about this? all that is subject for an investigation by sue grey. remember back then, in the horror of spring 2020, the rules were strict and clear — you could spend time outdoors with people you lived with or with only one other person. and yet, in the building where the rules were being made, a plan was formed for a gathering in downing street's garden on may 20,2020. i'm told around 30 people attended, including, according to two eyewitnesses, the prime minister and his wife, with a long table set out in the garden for drinks and snacks. and there was surprise and concern among some staff at the plan. eyebrows more than raised at the e—mail invite sent out by martin reynolds in black and white. messages sent between staff and shown tonight to the bbc that some were well aware of the problem. one wrote at the time: another said: all number ten spokesperson would say tonight was: for weeks, the prime minister's had to defend himself from a deluge of goings—on in downing street. he said again and again nothing went wrong. i have been repeatedly assured, since these allegations emerged, that there was no party and that...and that no covid rules were broken, and that is what i have been repeatedly assured. but for labour's deputy, this latest set of claims is a step too far. i think he should go. i mean, there is no excuses, and it will come as no surprise that i don't think boris johnson is up for thejob, but more importantly, i think he's lost the confidence of the british public now with his lies, his deceit and his breaking of his own rules. labour shouldn't hold its breath for that, but borisjohnson just can't shake off claims about his own behaviour during lockdown and the conduct of those right by his side. laura kuenssberg, bbc news. new york officials have pledged their support for those affected by a deadly apartment fire in the community of the bronx on sunday. the death toll was revised slightly down, but several people remain in a critical condition in hospital. tanya dendrinos reports. it is the deadliest apartment fire in new york city in more than three decades. nine adults and eight children perished in the twin parks complex on sunday. the victims found on every floor of the 19 story block. it every floor of the 19 story block. , . , . block. it is devastating, heartbreaking, - block. it is devastating, heartbreaking, i- block. it is devastating, heartbreaking, i have . block. it is devastating, i heartbreaking, i have cried block. it is devastating, - heartbreaking, i have cried a lot because i think about children, a figure — my three—year—old, four—year—old the lost their life to this devastating fire. it is painful. we have not experienced anything like this in new york city in 30 years and it reminds me that life is a stop those butterflies were remembered on monday as a communities would together in its grief. we visited every single school in the area where the children, our young scholars lost their lives. something that we heard universally about each child that we lost is how much they smiled, how much they were of life to the school.— life to the school. this was the scene _ life to the school. this was the scene as _ life to the school. this was the scene as heavy - life to the school. this was the scene as heavy smoke | life to the school. this was - the scene as heavy smoke poured from the building. nearby residents who did all they could to help recounted their horror. it could to help recounted their horror. ., , could to help recounted their horror. . , . ., ., , horror. it was chaos, there was a lot of peeple _ horror. it was chaos, there was a lot of people fighting - horror. it was chaos, there was a lot of people fighting for- a lot of people fighting for their life, you know, there was a lot of people trying to get out, exit the building and they couldn't because there was a lot of smoke, a lot of fire coming from the second floor all the way to the top floor. investigators believe a malfunctioning heater because the devastating flies and are looking into a meson issue with a door that failed to close when the fire broke out. allowing the smoke to spread. we are going to get through this moment and we are going to get through it together, and this tragedy is not going to define us, it is going to show our resiliency as we help families through this. fix, our resiliency as we help families through this. a strong statement _ families through this. a strong statement as _ families through this. a strong statement as the _ families through this. a strong statement as the city - families through this. a strong statement as the city tries - families through this. a strong statement as the city tries to l statement as the city tries to comprehend how this tragedy could happen. tanya dendrinos, bbc news. stay with us on bbc news. still to come: a story of bad luck good. the us pilot who survived more than a plane crash. day one of operation desert storm to force the iraqis out of kuwait has seen the most intense air attacks since the second world war. tobacco is america's oldest industry, and it's one of its biggest, but the industry is nervous of this report. this may tend to make people want to stop smoking cigarettes. there is not a street that is unaffected. l huge parts of kobe - were simply demolished as buildings— crashed into one another. this woman said - she'd been given no help and no advice - by the authorities. she stood outside - the ruins of her business. tens of thousands of black children in south africa have taken advantage of laws, passed by the country's new multiracial government, and enrolled at formerly white schools. tonight sees the 9,610th performance of her long—running play, the mousetrap. when they heard of her death today, the management considered whether to cancel tonight's performance, but agatha christie would have been the last person to want such a thing. this is bbc news. our top story: an anxious wait for novak djokovic as he waits to hear if australia's immigration minister might still revoke his visa. let's stay with that story now. the premier of victoria, danielandrews, hasjust said the case was now in the federal government's hands. the issue of who gets into the country and their vaccination status is not a matter for state governments. i don't issue visas, the commonwealth government does that. this is an active process, there was a court ruling last evening where that was appealed, it is a matter for the commonwealth government as to whether the immigration minister uses is quite extraordinary powers, thatis quite extraordinary powers, that is a matter to him. i don't want to offer any further mental map because you couldn't get a more active process. i stand by our process and our record reflects that we have not sought to, in fact quite the opposite, we have not sought to convince the commonwealth government to allow anyone in, quite the opposite. that is the opinion coming from victoria, the government of victoria. ben rothenberg hosts the tennis podcast no challenges remaining and he's in melbourne. he is awaiting the australian open, but you have more hands —— more in your hands on that. as we wait to see what route the immigration minister might take, whether djokovic is allowed to continue, you seem to have unearthed some more detail as to novak djokovic's own route to getting here. djokovic is basically amassing a timeline of what he has been up a timeline of what he has been up to for the past few months, raises a lot of questions as to how he got here and whether he was doing things the right way. one of the forms released by the courts yesterday, which was the courts yesterday, which was the australian travel declaration, djokovic was warned to be honest under penalty of... penalties for mistaken things in that form. and he said he had not travelled to any other countries in the past ia days, he takes the know box, which was not correct, because he had travelled between serbia and spain in that window. he also is raising more questions with his story about having a positive test on 16 december, which is a couple of days before, he was at other events in public including one large event with a bunch of kids, all not wearing masks, and that would have been the day after djokovic received a positive pcr test on his timeline. certainly a lot of questions for him to answer once he finally faces the media here in melbourne. finally faces the media here in melbourne-— finally faces the media here in melbourne. , , . , , melbourne. this is anything but straightforward _ melbourne. this is anything but straightforward first _ melbourne. this is anything but straightforward first something | straightforward first something that should be straightforward. so where does that leave us, do you think, and what sort of chanceis you think, and what sort of chance is there that djokovic's dream of being there for the open might still be thwarted? in tennis terms, the ball is very much in the court of alex hawke who is the australian minister for immigration, hawke who is the australian ministerfor immigration, and minister for immigration, and he ministerfor immigration, and he has the authority to review and revoke djokovic's these are, pretty much unilaterally. that cancellation of his visa being overturned by the courts was, the original reason was, he won the appeal solely on procedural grounds, not on the grounds that he had the right to get into australia. the paperwork may still not be efficient —— sufficient according to federal government guidelines. so if they review that and he loses the appeal again, he was only given the appeal because he was not able to contact people in the early hours of the morning, and now there is a review process. you are not a _ there is a review process. you are not a political— are not a political correspondent, ura —— you are a sports correspondent, but we heard the premier of victoria, from the labor party, saying it is for the federal government, which is the liberal party, there is an election coming up. as soon as this came up, politicians were lining up to look tough on him. different politicians don't want to be seen, all of them don't want to be seen to be giving job at any sort of leeway or caution. he is someone very politically attractive to be tough on, and demonised, fairly or unfairly. i don't know if he is out of the woods just yet.- the woodsjust yet. ben rothenberg, _ the woodsjust yet. ben rothenberg, good - the woodsjust yet. ben rothenberg, good to i the woodsjust yet. ben l rothenberg, good to see the woods just yet. ben rothenberg, good to see you. north korea is reported to have fired a projectile into the sea, less than a week after testing what it said was a hypersonic weapon. the japanese coastguard said the latest object appeared to be a short—range ballistic missile. the launch was immediately condemned by both the south korean and japanese governments. the past seven years have been the hottest on record, according to the eu's copernicus climate change service, which said they were the warmest by a clear margin since 1850. last year was the fifth—warmest year, with record—breaking heat in some regions, and levels of carbon dioxide and methane hit new heights. our climate editorjustin rowlatt examines the data. what a way to see in the new year. almost 1,000 homes were destroyed and tens of thousands of people were forced to evacuate as some of the worst wildfires ever seen in colorado swept across the state. coming down this road, the ditches and things, and the trees, they are all up in flames, like, there are embers everywhere. it looks like 2022 is set to continue the trend of extreme weather we saw last year. extreme events are likely to become more intense and more frequent, and we saw many examples of that. within 2021, there were the devastating floods in central europe that we saw injuly and also the extreme heatwave that we saw across the world injune in canada and injuly in sicily. these latest temperature figures confirm that europe experienced its hottest summer on record. the global data collected by european satellites shows 2021 was the fifth hottest year ever recorded, and — no surprise here — the concentration of warming gases in the atmosphere is continuing to rise, with record levels of both carbon dioxide and methane. the direction of travel is inescapable. just look how temperatures have risen since the beginning of the industrial revolution 170 years ago. that, of course, is when the world began to burn fossil fuels on a really massive scale, and now look at the last seven years. these latest figures show they were the hottest seven years ever recorded, an average of 1.2 degrees centigrade above pre—industrial levels. and the bad news is, a temporary cooling event in the pacific ocean actually lowered temperatures very marginally last year. that will soon pass, so don't expect any let—up in the warming trend in the years to come. it sometimes feels, when we've got complex, big problems like this, that there's very little we can do as individuals. but we do have a choice — we can make changes to our lifestyle to reduce our own greenhouse gas emissions, whether that's reducing the amount of meat and dairy that we eat, travelling less by flying or, you know, not taking the car as much and walking and cycling instead. the pact agreed by world leaders at the international climate conference in glasgow in november aims to do just that — to cut global emissions. today's confirmation of rising global temperatures is another reminder ofjust how urgent that action is. justin rowlatt, bbc news. there's often a very fine line between bad luck and good luck, and one pilot in los angeles has just lived through the extremes of both, twice — as our correspondent sophie long reports. go, go, go! the moment disaster was averted. this remarkable bodycam footage shows the moment lapd officers pulled a pilot to safety without a second to spare. go, go, go, go! horn blares. the plane had taken off from the runway at whiteman airport adjacent to the metro line just minutes earlier. but it crash—landed onto the tracks at this busy level crossing. police officers were at the scene in moments, but then an ominous sound created instant panic — that of a train fast approaching. horn blares. in a city where street corners are frequently turned into film sets, people here struggled to believe that what they were seeing was actually real. siren wails. there was a huge sense of panic. a lot of the bystanders were frustrated. they were frustrated, maybe, with the length of time it took to get him out. we didn't expect the train to still keep coming, so a lot of people were frustrated with that. it's out of this world. it's like something in a movie, that you would see in a hollywood movie. despite the flying debris, no one on the ground was injured. the pilot was the only person in the plane. his identity has not yet been released. all that's known about him is that he was lucky enough to cheat death not once, but twice in ten minutes. sophie long, bbc news, los angeles. they are just they arejust staggering pictures. they are just staggering pictures. let they arejust staggering pictures. let me remind you of our main story this hour. novak djokovic is back in training in melbourne after a court overturned the government's decision to deny him entry because he is not vaccinated against covid. he still waits, though, to hear if the immigration minister might yet revoke that these are. —— that visa. hello. after a fairly grey, drizzly sort of day on monday, more places will see the sunshine on tuesday. clearer air is working its way south across the uk behind this cold front here, which is only slowly pushing southwards. so we've still got quite a lot of cloud around. the cloud and drizzle will slowly clear southwards through the day, so a reappearance of sunshine from the north, but some of us will hold onto the cloudy drizzly conditions all day in the far south. so we start off with quite a contrast in temperature, mild towards the south, but temperatures a few degrees either side of freezing first thing for scotland, northern ireland and the far north of england as well. this is how tuesday is looking then — you can see the clearer skies for much of the uk as this band of cloud and drizzly patchy rain sink south. a bit of mist and murk particularly around coasts and hills for southern england and south wales too, lasting all day. but mild here, 10—11 celsius, in the clearer, sunny skies, between about 6—9 celsius, a few showers just rattling in across the north and west of scotland. through tuesday evening and overnight now into wednesday, eventually, we will lose that cold front, that band of cloud and drizzle from the south. so clearer skies for all as we move on into wednesday morning. breezy in the north and milderair here, double figures overnight. but further south, we are likely to see a frost to start your wednesday morning. so moving through wednesday, then, once we have lost that cold front, we've got high pressure building really across the uk, so that's going to bring a lot of dry and settled weather. but a change in temperature because this milder air is coming in from the south—west around the top side of that high—pressure, so moving into northern parts of the uk. further south, we're sitting under the colder air. so, really, from mid—week onwards, we've got a bit of a split. it's mild and breezy in the north, whereas further south, colder with some fog patches that could linger for quite a time. that's how wednesday looks, then we've got the cloudier, breezier conditions across parts of scotland in particular. fog patches further south, it will slowly clear away, and then a lot of dry and sunny weather. we've always got that bit more cloud and a few showers in the far north—west. here, 11 degrees for stornoway, and about 7 degrees or so for london. and a few places could struggle where we keep that fog. through the day on thursday, some of that fog could be quite extensive and slow to clear across parts of england and wales too. breezy and cloudy in the far north—west, plenty of sunshine elsewhere, but we could see those lingering fog patches all day for a few areas. bye— bye. row this is bbc news. the headlines: an anxious wait for novak djokovic. he's back in training ahead of the australian open after winning his appeal against being denied entry. but the country's immigration minister still has the power to revoke his visa. doctors in the us have carried out the first successful transplant of a pig's heart into a human. the animal was genetically modified to reduce the risk of the organ being rejected. a breakthrough would raise hopes of a solution to the shortage of organ donors. borisjohnson has refused to say whether he joined dozens of staff for drinks during lockdown. up to a hundred people are said to have been invited to an event in the downing street garden. rules at the time allowed just two people from separate households to meet outdoors. the housing secretary, michael gove, says he wants developers to pay up to £a billion to fix dangerous