across the southwestern pacific. hello and welcome if you're watching in the uk or around the world. the senior uk conservative mp and former minister tobias ellwood says borisjohnson must "lead or step aside" following the controversy over gatherings at downing st while coronavirus restrictions were in place. a number of tory backbenchers say they've been inundated with messages from angry constituents about the growing list of parties dating back to the spring of 2020. the opposition labour leader, sir keir starmer, says it's now in the national interest for mrjohnson to go. the bbc�*s political correspondent iain watson has the very latest. borisjohnson has come under renewed pressure following number 10's apology to buckingham palace over a leaving do held last year on the eve of the duke of edinburgh's funeral. so today the labour leader urged conservative mps to force him out. of course there's a party advantage in him going, but actually it's now in the national interest that he goes, so it's very important that the tory party does what it needs to do and gets rid of him. usually when opposition mps call for a prime minister to go, the troops rally round, but today the conservative chairman of the commons defence committee, tobias ellwood, did not exactly defend his boss when he told the bbc borisjohnson should lead, or step aside. outside downing street, demonstrators against a forthcoming police bill were making their views of the prime minister known. far more subtly, some of his own mps have also been doing so. what may be worrying the prime minister is that some of his former supporters now want him to go. one mp, elected in 2019, told me he owed his seat to borisjohnson but now, he says, this feels terminal, and he should go quickly. and another mp i spoke to several days ago, who told me then that he thought borisjohnson could ride out this political storm, got back in touch today to say he's now damaging the conservative brand and it was a question of when, not if, he leaves number 10. no cabinet minister, though, has broken ranks and there is hope inside downing street that an investigation by a senior civil servant may say that the prime minister has not broken covid rules. and the expected lifting of restrictions later this month could improve his mps�* mood. this weekend, conservative mps will be listening closely to their voters and it mood on the doorstep could determine whether the prime minister is shown the door. iain watson, bbc news. lawyers for the duke of york want to question two people as part of the civil sexual abuse case being brought by virginia giuffre in america. according to court documents, prince andrew's legal team argue that ms giuffre may be suffering from false memories, and they want to hear from her husband and her psychologist. prince andrew denies all the allegations against him. 0ur correspondent in washington, nomia iqbal, has more. this comes 2a hours after virginia giuffre requested witness accounts from prince andrew's former assistant and a woman at a nightclub at the time of the allegations, and now the prince has hit back with requests of his own. as you mentioned, his legal team wants to hearfrom her husband, robert giuffre. they want to know how he met his wife in 2002, the household finances. they also want to ask about virginia giuffre�*s relationship with the convicted sex offenders jeffrey epstein and ghislaine maxwell. the duke's side is claiming that mr giuffre had a role in recruiting underage girls to be trafficked. they also contend, as you mentioned there, that she may suffer from false memories, which is why they want to examine the second person, her doctor, a psychologist, judith lightfoot. now both the husband and doctor are residents of australia, so the duke's legal team have requested that letters are issued from the us court to the central authority of australia to get the testimonies. nomia iqbal reporting from the us there. in the next few hours, novak djokovic will hear whether or not he'll be allowed to remain in australia. the government says the world number one tennis player, who hasn't been vaccinated against covid, is a threat to public health. his lawyers are appealing, describing the latest decision shaimaa khalil, reports from melbourne. free the refugee! once again, novak djokovic is in detention, and once again, the world number one is challenging the cancellation of his visa. in court documents which were released today, we learned that the immigration minister alex hawke made we learned that the immigration minister alex hawke made his decision because the player's presence in australia may foster anti—vaccination sentiment. the tennis star's legal team says the argument was invalid and irrational, and that deporting him would potentially undermine support for the vaccination programme. we want novak djokovic to play! and while some of djokovic�*s supporters gathered to back him, there has been little sympathy for the tennis player. i do feel that to make a statement that we are sticking by what we have been calling for the last two years, i feel it is best for djokovic to probably sit this one out. i hope that the government and the judges hold their ground and say, you don't want to get a vaccination and you don't want to follow our rules, then you can't come in. when novak djokovic�*s visa was revoked the first time, he was held here at this immigration detention hotel. more than a week later, he's back. only two days before he is meant to compete in the australian open and defend his title, this is where he will be spending the night. and when he does get out on sunday, it won't be to go to practice — he will be in his lawyer's office while a court decides his fate. his rival rafael nadal said the grand slam is not just about djokovic. so if he is playing, the australian open will be a great tournament with or without him. the uk foreign secretary has accused russia of waging a disinformation campaign to destabilise and justify an invasion of ukraine. liz truss wrote on social media that russia must halt its aggression, de—escalate and engage in meaningful talks. it comes after a week of us—russian talks aimed at defusing tensions. russia has amassed tens of thousands of troops on the border with ukraine, prompting invasion fears. north korea has released images on state media of its third weapons test this year — friday's two short—range ballistic missiles that were launched into the sea off its east coast. north korea's foreign ministry has again defended the missile programme, saying it had a right to self—defence. pyongyang has been testing new hypersonic weapons that are designed to evade interception. the actor, alec baldwin, has handed in his mobile phone to detectives, almost a month after a warrant was issued by police for the device. they're investigating the fatal shooting on a film set in new mexico back in october, when the cinematographer, halyna hutchins, was shot. it happened while mr baldwin was rehearsing with a prop gun, that contained live ammunition. but he insists, he "didn't pull the trigger". tsunami waves a metre high have hit the pacific island nation of tonga, after an underwater volcano erupted, for the second time in two days. satellite images captured the moment, as huge plumes of black ash darkened the sky. local people have been urged to move to higher ground. tsunami warnings were issued from australia to the united states and japan. we're joined by dr kayla iacovino, a volcanologist and presenter of the bbc documentary series expedition volcano. this is an underwater volcano, help us to understand the scale as when we look at the satelite images, tell us how wide the plume is and and how high did it rise? what makes it significant is its size and we have been able to witness it first hand with the satellite images. early reports are coming out now from the tonga geological service. we still do not know how much material erupted, which will help us to classify the size, but we know the volcanic plume was about five kilometres wide and as much as 20 kilometres high, which is really significant because that indicates that this eruption rose into the earth's stratosphere, which is at the own upper atmosphere which allows volcanic material to spread out around the globe, creating further reaching impacts. i guess that explains _ further reaching impacts. i guess that explains the _ further reaching impacts. i guess that explains the scale _ further reaching impacts. i guess that explains the scale of - further reaching impacts. i guess that explains the scale of it - that explains the scale of it because we have seen the tsunami waves on tonga, the island close sketch closest to this volcano, but also had tsunami alerts across the us west coast, australia, new zealand and japan. what does this say about the strength of this eruption? it say about the strength of this eru tion? , , ., say about the strength of this eru tion? , , . .,, eruption? it tells us that there was enou:h eruption? it tells us that there was enough energy _ eruption? it tells us that there was enough energy released _ eruption? it tells us that there was enough energy released in - eruption? it tells us that there was enough energy released in this - eruption? it tells us that there was | enough energy released in this very short lived blaster that was able to exploit water, push water out of the way and create this shock wave that sent ripples are literally across the globe. it goes to show you how far—reaching volcanic impacts can be when there are people in washington state and japan worrying about something that literally happened on the other side of the globe. the most destructive tsunamis generated by earthquakes, what do we make of this that it is an underwater volcano creating these powerful waves? . , volcano creating these powerful waves? ., ,. ., , volcano creating these powerful waves? ., , . ., , ., volcano creating these powerful waves? ., ,. ., ., waves? that is certainly one of the thins waves? that is certainly one of the things that — waves? that is certainly one of the things that has _ waves? that is certainly one of the things that has probably _ waves? that is certainly one of the l things that has probably contributed to largely have explosive at the eruption was. when some magma rising from beneath the surface comes into contact with surface water or ground water, it heats that water so quickly that it turns to steam and in a huge chain in the volume of water that it goes from liquid water to steam and that is essentially one of the main driving forces in addition to that rising magma and exploding lava that is another force that causes this massive explosion. and it really creates this effect that can be felt so far away. this is an area _ that can be felt so far away. this is an area of _ that can be felt so far away. this is an area of seismic— that can be felt so far away. this is an area of seismic activity, so are we expecting to see more of this? this is the second any number of days. it this? this is the second any number of da s. , this? this is the second any number ofda s. , , ., of days. it is impossible to say if it will erunt _ of days. it is impossible to say if it will erupt again _ of days. it is impossible to say if it will erupt again on _ of days. it is impossible to say if it will erupt again on this - of days. it is impossible to say if it will erupt again on this scale. | it will erupt again on this scale. certainly probably the volcano will erupt again, but we really don't have a good way to currently predict eruptions, certainly not more than hours a days ahead of time. this volcano looks like it was actually winning an activity until it is a really explosive event happened. i know the local authorities there, the tonga geological service are keeping a very close eye on it. the rest of us around the world will be looking to them over the next few days to see if we see more precursors such as earthquakes, nearer underneath the volcano, which could indicate that another eruption might occur. idr could indicate that another eruption might occur-— might occur. dr kayla iacovina, volcanologist, _ might occur. dr kayla iacovina, volcanologist, thank _ might occur. dr kayla iacovina, volcanologist, thank you - might occur. dr kayla iacovina, volcanologist, thank you for . might occur. dr kayla iacovina, - volcanologist, thank you for talking is true that underwater eruption stay with us on bbc news, but for those viewers outside the uk, we say goodbye for the moment. here in the uk, the coastguard is celebrating a major anniversary, founded exactly 200 years ago. luxmy gopal has been looking back at how the vital public service came into existence. search and rescue. for 200 years, the coastguard has been searching, rescuing and saving lives. it's such a feeling to be able to help people who've really been at a really low point and just make that situation at the time a little bit better for them to bear, and then long—term it means somebody goes home who maybe wouldn't have done. 0riginally set up to combat smuggling, her majesty's coastguard was formally established on the 15th of january 1822. newsreel: there's a certain amount i of mystery about the coastguard - l who he is and what he does. it has worked to keep people safe at the coast and at sea ever since. this is coastguard control. as illustrated in this video from 1972. ahoy there, coastguard here! we'll be down with you in a few minutes. hang on! when we started, it was horseback patrols, looking for smugglers and people like that. that's where the coast and the guard bit comes from. it's changed hugely. we still rely massively on our volunteers, as we have done for almost the entirety of the 200—year history of the organisation. the coastguard now has 3,500 volunteers across 310 rescue teams, in addition to ten helicopter bases. the way the coastguard saves lives at sea has changed almost beyond recognition since its creation 200 years ago, with a new updated radio network and with new technology such as drones and unmanned vehicles playing a growing part in its search and rescue operations. you've got to embrace new technology, you've got to look to improve. you can't sit still and think, "we're doing the best we can." there's always improvements to be made, so we have to look at technology. so we're looking at fibre communications, improving ourfleet to bring in electric vehicles, drone technology and how that can assist in searches and speed up finding people that are in difficulty. so really, we've just got to be open to change and embrace it and look to improve at any point that we can. to mark the organisation's milestone birthday, 200 throw lines are being cast into the seas around the four nations today as a symbol of the coastguard's life—saving role, past and present, on our shores and at sea. luxmy gopal, bbc news. thieves are leaving thousands of opened and damaged packages strewn across the railway tracks in east los angeles after looting goods trains passing through. products that are difficult to move or re—sell or are too cheap, like covid—19 test kits, furniture and televisions, are just dumped on the tracks. the thefts are affecting major us mail order and courier companies like amazon, ups and fedex. james reynolds reports. if you live in los angeles and your package hasn't been delivered, you might want to check the rail line in the east of the city. freight trains passing through this area have become an easy target for thieves, who leave evidence of their raids all over the tracks. as trains head into a busyjunction, they often slow down or stop, and looters are ready. theyjump on these trains. these locks that these containers have are really sometimes plastic seals, the locks aren't really sturdy or strong, you know. they don't care if the train is moving or not. theyjump on the train, pop the lock and just start grabbing whatever they see. all of this has accumulated over the last month alone. looters aim for the most valuable items they can find, ripping through packages and avoiding cheaper bulk cargo items like toilet roll. towards the end of last year, more than 90 containers were vandalised every day. thefts peaked around christmas. according to the rail operator union pacific, over the last year looting along the train line in los angeles county has risen by 160%, costing millions of dollars. the thefts have hit major companies, including amazon, ups and fedex. the rail operator says it has now increased security along the line. james reynolds, bbc news. today marks 25 years since princess diana walked through a minefield in angola to raise awareness of the lasting impact of conflict. diana captured global attention when she walked through the live minefield in 1997, escorted by the british landmine clearance charity the halo trust. she never lived to see the full impact of her visit — such as the signing of an international treaty to outlaw the weapons — as she died later that year. we've been speaking to louise vaughan from the halo trust who explained how that walk was organised. she was already very much involved with the international red cross and she was planning a trip to angola to highlight the terrible impact that these weapons were having on normal people who had absolutely nothing to do with the war, and particularly children. so when we heard she wanted to visit a minefield to showcase what was happening, we agreed that we would accompany her. the minefield had very recently been cleared by my colleagues there. essentially, it was amazingly brave of her. it is important to realise that when she visited the civil war was still raging, things were very dangerous there. she was clearly quite nervous about walking through the minefield but she was very shrewd — she knew that those images of her would absolutely become global front—page news everywhere and that would make it impossible to ignore that there had to be a universal ban on these totally indiscriminate weapons. the instant impact was tremendous — it stopped global headlines. everybody is now familiar with those images, one of the most iconic of her life. within months... there had been a grassroots campaign to ban landmines throughout the world for a number of years, but by making it front—page news she made it impossible for governments to ignore. and so, as you say, the anti—landmine ban treaty, the ottawa treaty, came into being by the end of the year. tragically she didn't live to see that, but that treaty is still one of the most successful of all time — 164 signatories, landmines are virtually obsolete now from production and from use, and we've seen over 30 countries cleared of landmines, including mozambique which was one of the most heavily land—mined countries on earth. so it's been an extremely powerful treaty and has saved literally millions and millions of lives. louise vaughn from the halo trust. large crowds of hindu worshippers have gathered on the banks of india's ganges river for a holy bath in spite of a 30—fold increase in coronavirus cases in the past one month. similar festivals are taking place across the country. doctors in west bengal applied to stop its festival this year, worrying it would become a super spreader event. india reported over 260,000 new coronavirus cases on friday. aru na iyengar reports. varanasi in the northern state of uttar pradesh. thousands of pilgrims throng the ganges river banks to take part in the magh mela festival. they believe bathing in these sacred waters will wash away their sins. translation: nobody - is following the guidelines. announcements are being made to urge people to wear masks. what can the government do? the mistake is on our part that we should be following the rules, but nobody is following the rules, nobody is ready to listen to the rules. at the gangasagar festival in west bengal, officials try to enforce covid restrictions. pilgrims have to show their vaccine certificates along with an rt—pcr test report ta ken two days before arrival. but most here believe god will save them from covid. three million people are expected here. doctors asked the state high court to stop the festival, fearing it would become a super spreader event, but that was rejected. they are worried because last april there was a record rise in coronavirus cases after the government of uttarakhand state in the north allowed the massive kumbh mela festival to go ahead. the indian prime minister, narendra modi, says the festivals show india's vibrant cultural diversity. meanwhile, coronavirus cases are predicted to peak next week in new delhi and mumbai as the country battles with the highest number of cases since may last year. aruna iyengar, bbc news. scientists at the university of hull have developed a new way of cooling down computers and reducing their impact on the planet. the system can be used in computer data centres that generate huge amounts of heat from internet activity. the new technology is saving money and co2, as our environment correspondent paul murphy reports. in a laboratory on the outskirts of hull, a high—tech system that has taken 15 years to develop. essentially, it is a way of cooling computers down without the expense and carbon emissions associated with conventional air conditioning. it's driven by water evaporation, not by a refrigerant. it's the beauty of nature. if it evaporates the water, you have loads of energy being taken away by changing the water from liquid to the moisture in the air. data centres are places few of us will ever visit, but they are the backbone of our internet use — processing everything from simple e—mail to online shopping. and all of this generates heat. hull city council has its own data centre, and by using this new technology, the authority's been able to save thousands off its cooling bills and reduce emissions. everything we have nowadays, we just store electronically, so it's a growing carbon impact for the council, but also globally as well. it's a big global challenge, so the opportunity to work with the university is really important, to actually take advantage of the innovation at the university and the research that is done there. and this new cooling technology is generating interest from outside the world of computers. what is very exciting is it's not only for data centres, it can be used for other areas of cooling, including agriculture and including other industrial process cooling and also office cooling. this is still a pilot project, but the technology is ground—breaking and is already attracting attention from around the world. paul murphy, bbc look north, at the university of hull's aura innovation centre. wildlife experts in scotland are hopeful that progress is being made in efforts to save the native red squirrel from extinction. grey squirrels have been better able to adapt to changing habitats over the years, and they carry a virus that's fatal for red squirrels. alexandra mackenzie has that story. the native red squirrel. not a common sight in the uk, but now limited to areas like here in barhill wood in dumfries & galloway. how many red squirrels would you have in this wood? in november last year we had over 30, which is an exceptional amount. you know, there's not many places in scotland where you'd find that level. so what makes this the ideal habitat for the red squirrel? principally it's the age of the trees, that they are now producing cones regularly, and that enables food to be available at different times of the year. the larch produces cones in the summertime, the scots pine in the winter, so it gives the squirrels a good wide feeding pattern. but of course, they are in competition with the grey squirrels. wherever you get the grey squirrels, the reds are going to disappear, unfortunately. the scottish wildlife trust said having a predator — the pine marten — helps to control the grey squirrel population. but that is not enough. grey squirrel control is going to be necessary for a long time yet. so that'll be the key thing that needs to keep continuing in a targeted and landscape—scale approach, you know, which is tricky and hard work but what is needed if we want to keep our red squirrels. the battle for survival with the more feisty grey squirrel is likely to continue for some time. alexandra mckenzie, bbc news, kirkcudbright. coming up in a moment, movie hack mark kermode will be slicing up the latest cinema releases in the film review, including the new scream film. will it have fans shrieking with delight or howling in terror? we'll be carving up his verdict in a moment. now it's time for a look at the weather with matt taylor. hello. while some of you saw the sunshine today, there was a lot more cloud around across the country, and that will have a consequence for tonight in that it will not be anywhere near as cold, so not as much frost around, and certainly less in the way of fog, too, and it's all because of what's happening out to the north—west of us. an area of high pressure is clearing away, allowing these weather fronts to approach in. this one bringing some showers across the south, this one bringing some wet and windy weatherfor a time in scotland, especially. now, we go into the night with most starting dry, but those showers develop across the southern areas, and then outbreaks of rain pushing southwards across scotland, northern ireland. could see strong to gale force winds for a time in the north, and overall a breezier night here. that will keep the frost at bay for many. temperatures by and large above freezing. as you can see, very little blue on the map, but there could be the odd pocket of frost, and also fog to take us into the start of sunday. so, this is the setup for sunday. got high pressure trying to build in again from the west, but for the time being, this weakening weather front to be this weakening weather front has been working its way southwards, bringing the bulk of the morning rain across northern england and north wales, after it's quickly cleared away from scotland and northern ireland, leaving a dry, sunny day for many, but blustery, with a few showers in the far north. that cloud and patchier rain pushes through wales and the midlands during the middle part of the day, and then into the far south later on, by which time very little rain on it. winds still light across many southern areas on sunday. a blustery day across the north, but the winds aren't coming off the atlantic, so, if anything, it will be a milder day on sunday compared with saturday. temperatures a degree or two above where it would normally be at this stage injanuary. but as we go into sunday night, you can see clear skies across much of the country, lighter winds the further south you are. that will lead to some fog patches, and the blue appears back on our temperature chart, an indication of more widespread frost to take us into the monday morning commute. there will be temperatures in the towns and cities just above freezing, but well below it in the countryside, and that's because we've got high pressure in place. it's towards the south—west of the uk, and with winds lightest here, wales, south—west england, could be some lingering fog patches through the morning. elsewhere, most places will have a dry day. lots of sunshine around on monday, cloudy as conditions cloudiest conditions in the far north of scotland, isolated shower or two. most, though, will be dry. temperatures not far off the seasonal average at this stage in the year. as for next week, well, after that sunny start to the week, there is the chance of some more cloud and some breezy conditions with outbreaks of rain in scotland, northern ireland, on tuesday and wednesday. that clears away, temperatures drop a little bit, but overall we go back to where we are now — many places dry by day, some frost, fog forming by night. bye for now. hello, this is bbc news. the headlines... the prime minister is told to "lead or step aside" — as details of lockdown parties continue to emerge. the leader of the opposition says it's now in the national interest for borisjohnson to go. novak djokovic spends the night in an immigration detention hotel in melbourne, ahead of a court hearing to decide whether he'll be deported from australia.