this is bbc news with the latest headlines for viewers in the uk and around the world. fighting breaks out between armenia and azerbaijan in the disputed region of nagorno—karabakh, with casualties on both sides. the uk government defends its decision to allow students to return to university despite several outbreaks of coronavirus — leaving many confined to their rooms. the murdered london police sergeant matt ratana is remembered at the rugby club where he was head coach — as the suspect is named as 23—year—old louis de zoysa. democratic presidential candidate joe biden accuses president trump of using the supreme court to try to eliminate obamacare. and coming up — why one tennis player refused to stay on court over what she called the "ridiculous" conditions during her french open match.

hello and welcome if you're watching in the uk or around the world — and stay with us for the latest news and analysis from here and across the globe. armenia's prime minister has warned of the risk of full—scale war after clashes with azerbaijani troops broke out in the territory of nagorno—karabakh. officials in the breakaway region, which is controlled by ethnic armenians, say 16 soldiers have been killed. azerbaijan has also reported deaths. armenia accuses azerbaijan of launching an attack on civilian settlements, and its defence ministry says its troops have destroyed three tanks and shot down two helicopters. the azerbaijan ministry of defence has denied targeting civilians and said it had launched

a counter—offensive against armenian shelling. the two former soviet countries have been in conflict for more than a quarter of a century over azerbaijan's breakaway area. our correspondent rayhan demytrie reports. sunday morning in nagorno—karabakh. heavy fighting using tanks, artillery, drones and helicopters broke over this territory disputed by azerbaijan and armenia for more than 30 years. both countries accused each other of reigniting the conflict. both sides reported casualties, including civilians. translation: it is no secret that the first fire, including artillery fire, was opened by armenia. and the first to die were azerbaijani servicemen. azerbaijan gave a decent response to the enemy and the enemy could not move an inch. the armenian prime minister

urged the world community not to stay silent. translation: the outbreak of a large—scale war in the south caucasus, the brink of which we are standing now, could have the most unpredictable consequences. it could go out of the region's borders and take wider volumes and threaten international security and stability. turkey expressed its solidarity with azerbaijan. russia called for an immediate ceasefire. the mountainous kara bakh was an autonomous region within soviet azerbaijan, populated largely by ethnic armenians. the two countries fought a war they are in the early 1990s. armenia gained control over the territory and a number of adjacent azerbaijani districts following a 1994 ceasefire. azerbaijan has repeatedly expressed its frustration with a lack of progress in the decades long peace process. it is now resorting to a military

solution to regain its territories. dr artyom tonoyan specialises in the south caucasus region. he's a research associate at the university of minnesota's institute for global studies. thank you very much for coming on the programme. thank you for the invite. i am glad to be part of your programme tonight. we appreciate it. we are used to seeing clashes in this area. there are regular clashes down the years, but there are warnings now that sound very different, a risk of a full—scale conflict here. how realistic is that? i would assess it to be very realistic. the events on the ground are proving to be so. as you probably are aware, early in the morning azerbaijan launched a full—scale offensive along the line of co nta ct, full—scale offensive along the line of contact, along nagorno—karabakh. the casualties are heavy, the

bombardments are heavy, there are mutual casualties. it looks like this is in for a long haul. given that, how destabilising is this on an international scale, given the regional powers in the area, turkey on one side, potentially rush on the other, and iran close by? —— potentially rush on the other. this is as close to a major destabilisation as it has ever been, since the 1994 ceasefire. this is unprecedented in scale and it looks like it may indeed draw in the big powers, like russia and turkey. just about an hour powers, like russia and turkey. just aboutan hourago, powers, like russia and turkey. just about an hour ago, the president of nagorno—karabakh about an hour ago, the president of nagorno—kara bakh stated that about an hour ago, the president of nagorno—karabakh stated that turkey is indeed a part of the conflict. as he said he is going to offer proof

of the engagement of turkish troops and the air force of the engagement of turkish troops and the airforce in of the engagement of turkish troops and the air force in conducting operations against the armenian forces in nagorno—karabakh. operations against the armenian forces in nagorno-karabakh. that sounds like a potentially destabilising escalation. why now? this has been going on for years and yea rs this has been going on for years and years and years, there were major clashes back in the summer, why the sudden escalation around now? there area number of sudden escalation around now? there are a number of reasons actually. perhaps one of the biggest reasons is that recently there was an escalation in another region, where azerbaijan received a cold shower, where one of their generals was killed in the clashes. azerbaijan got really mad and turkey invited itself into the conflict by taking azerbaijan's side unilaterally. the

turkish defence minister and the foreign minister said that turkey stands by azerbaijan. that gave an additional incentive for azerbaijan to feel empowered enough that it could change the facts on the ground. i see. i am could change the facts on the ground. isee. iam afraid could change the facts on the ground. i see. i am afraid we will have to leave it there. but we really appreciate you coming on the programme to talk us through that. thank you very much. thank you. the british government has defended its decision to allow hundreds of thousands of students in england to return to university for the new term, despite several outbreaks of coronavirus on campuses. thousands of students are confined to their rooms, but the culture secretary, oliver dowden, says it's important their studies aren't sacrificed because of the virus. a member of the government's advisory body modelling the spread of the pandemic, says the consequences of allowing students back have been

‘entirely predictable'. dan johnson reports now from manchester. for the student in need, there's one emergency service that always delivers. parents have stepped in when supermarket slots ran out. it's just really rough at the moment, and we're really disheartened by the whole entire situation. these first year nursing student say they're already rationing food. people wanted to drop out, we're not getting the right uni experience and we're not talking about going out and partying, we're not getting the right education. people are really struggling, especially with anxiety and depression. it is really hard for those to calm themselves down and relax, because they are being told they're locked up. it's basically claustrophobic, and you feel like you can't get out of here because you're not allowed to. max got a family drop off on the third day of a fortnight in isolation here. do you think there might come a time when you need to take him back? potentially. if it was an option

and he wanted to, and felt uncomfortable here, yes. while case numbers are so farlimited... if enough of you come out, we're not going to do anything. ..the voices of concern are getting louder. students have been done over on their a—levels, they've been done over on freshers' week. the government is now threatening to lock them up at university. and, very worrying for them, when they graduate we may be looking at long—term youth unemployment. it's no surprise that students living on top of each other will share the virus. and scientific advisers did predict university spikes. they showed quite clearly that the risk areas were particularly first year students in halls of residence, as well as face—to—face teaching. it was very predictable and it was modelled. while some may be questioning this situation, universities say it's all about keeping them and communities safe. we are doing that in order to reduce the spread of the disease and enable them to go back at all. it's important for students not to have to give up a year of their life by not going to university. and they are going to university

and paying fees accordingly. of course, this is no start to the new term for these students, and there are likely to be others who suffer similar disruption. but what's the alternative? there are no good options here, really. unless everyone is to be denied even the chance of a university experience this year. and in newcastle, these are the latest arrivals. i'm still excited, i still think there will be plenty going on. i'm excited, but quite nervous, just because you don't really know what to expect. in glasgow, tess has the virus and is one of around 1000 students isolating across scotland. the reason why is is spreading out from murano is because people from other unis, or people who can't go don't even go to uni, are coming to murano for a night out, which is ridiculous. there are questions about seeing family at christmas and calls to get enough testing in place to allow that to happen safely. danjohnson, bbc news, manchester. the latest government figures show there were 5,693

new coronavirus infections recorded in the latest 24 period. that means the average number of new cases reported per day in the last week is 5,816. 17 deaths were reported of people who died within 28 days of a positive covid—19 test, so on average in the last week 30 deaths were announced every day. that takes the total number across the uk to 41,988. the suspect in the killing of police sergeant matt rata na is being named as louis de zoysa, who's 23 and from norbury in south london. he remains critically ill in hospital following the shooting. our home affairs correspondent tom symonds has the latest. police memorial day commemorates all of those who've died while serving but the killing of an officer is a particularly traumatic event. the home secretary and the mayor of london laid wreaths, but the metropolitan police commissioner, dame cressida dick,

was remembering an officer she had personally served alongside. matt ratana, she said, was extraordinary, firm but supportive of those needing help. if something good can come out of this terrible incident, it would be that more people understand a little bit about the challenges of police work and see us police for who we are. you know, human beings who go to work to help people, to support people and to protect people. and matt was the epitome of that. matt ratana was killed when shots were fired by a handcuffed suspect inside a secure police custody facility. the bbc has been told louis de zoysa, who's 23, is the man of murdering him. —— suspected of murdering him. this morning, searchers continued at his family home in south london. police were also at a rural property

in surrey, where early yesterday morning local residents heard what was later described to them by police on the ground as a controlled explosion. as the investigation gathers pace, a man has been arrested in norfolk on suspicion of supplying a gun. matt ratana was as dedicated to rugby as he was to policing. and today, several clubs were remembering him, including east grinstead, where he was head coach. two families, rugby and police, will never forget their loss. tom symonds, bbc news. the democratic presidential candidatejoe biden has accused donald trump of rushing to install a new supreme courtjustice to ‘eliminate the entire affordable care act', known as obamaca re. president trump nominated justice amy coney barrett on the supreme court on saturday giving conservatives a six to three majority if the senate approves. the move has drawn criticism because the nomination is so close to november's presidential election.

never before in our nation's history has a supreme courtjustice been nominated and installed while a presidential election is already under way. it defies every precedent, every expectation of a nation where the people, the people are sovereign and the rule of law rains. —— rule of law reigns. but yesterday, before justice ginsburg could be laid to rest, and after hundreds of thousands of americans have already cast their ballots, the president nominated a successor to her seat. it is no mystery about what is happening here. president trump is trying to throw out the affordable care act. he has been trying to do it for the last four years. i spoke to nomia iqbal, our correspondent in washington. she outlined joe biden's strategy here.

well, with the supreme courtjustice nomination, there is not really much the democrats can do to be honest. they could probably try and delay it for about a week, various procedural options that they have. but ultimately the republicans have the numbers they need so far — 51 senators. actually, they probably only need 50 because if it goes to a tie, mike pence would break that tie. i think we can assume how he would vote. overall, joe biden's strategy, i think, we will see this in the coming weeks, certainly with the first presidential debate on tuesday, he is trying to appeal to those undecided voters, those voters who are not quite sure which way to go. you know, he is the moderate guy, he is the one that cares about you, the forgotten people. the scranton strategy as they are calling it versus wall street donald. i think we will see quite a lot of that, certainly on tuesday. tens of thousands of opposition

supporters in belarus have taken to the streets for the seventh consecutive sunday in protest at president alexander lukashenka's disputed re—election last month. police say they've detained around 200 people. the protests centred on the capital minsk, where the main event was a rally near the hero city monument. jonah fisher reports. seven weeks after the disputed election, belarus's protests now have a certain rhythm. sundays are the big ones, and there was once again tens of thousands on the streets of the capital, minsk. over the weeks, the protesters' outfits have evolved, as have the jokes and the insults. why have you got a rat on a cross? it's our president! president lukashenko is widely thought to have lost august's vote to sviatla na tsikhanouskaya. they chant for her, but a crackdown has all but destroyed

the opposition leadership. sergei dylevsky, a tractorfactory worker and trade unionist, is pretty much the only leader who is neither injail or in exile. and he's worried. while we are with him, his wife calls twice to make sure he hasn't been picked up. at the moment, there is no organised opposition inside belarus, he tells me. but if you call the people of belarus the opposition, then the opposition is stronger than ever. while the police and military remain loyal, and willing to use force, it's hard to see president lukashenko going. so, this is what we have seen repeatedly here. excuse me, sir. basically, these masked guys, nothing on them which says who they are, disrupting demonstrations.

detaining people, taking them into vans. where are you taking these people? this was a women's march yesterday. what is happening to you? she says she was just standing next to a cafe. what is your name? we showed you our name. no name. no name? why not? no name, no face? why don't you show your face? on europe's eastern flank, the men in masks are still very much in charge. jonah fisher, bbc news, minsk. sport now and time for a full round up from the bbc sport centre. good evening. teams in the premier league this weekend have been falling foul of the new handball directives, some

very harsh penalties being awarded. it cost tottenham the win at home to newcastle on sunday after lucas moura had put spurs ahead. they had numerous chances to put the game to bed, they hit the woodwork twice, but when andy carroll headed a cross against eric dier‘s arm from close range, newcastle were given a penalty deep into injury time that was scored by callum wilson for a 1—1 draw. i think we have lost the plot with it totally. i really do. i think it loses the spectacle, also. we are waiting around for three orfour minutes, is it a penalty? is it not? well, if that had been the boot on the other foot i'm wandering up andi gave a penalty away like that, it is like hang on a minute. this is ridiculous. there was an astonishing result at the etihad stadium as leicester moved to the top of the table on goal differnece with a 5—2 thrashing of manchester city. jamie vardy scored a hatrick, two of them penalties. riyad mahrez had actually given city an early lead but their patchwork defence struggled to contain

leicesterjames maddison scored a brilliant fourth and though nathan ake headed his first city goal, youri tielemans added another leicester goal frpom the spot. that's the first time any pep guardiola team has conceded five. the lack of creating chances, we got nervous, we got anxious. it happened many times. they did not want to play, they wanted to counter attack and do it, so we conceded. after we gave three penalties. when this happens, it is difficult to move forward. two other results in the premier league on sunday, patrick bamford scored leeds' winner against sheffield united. 1—0 to them in the yorkshire derby. west ham have their first points, beating wolves 4—0 at home. jarrod bowen scored twice. a busy day in la liga where luis suarez scored twice on his atletico madrid debut. they beat granada 6—1. his former club, barcelona, are also on their way to a big win.

they are beating villareal 4—0. ansu fati has two, lionel messi has scored with a penalty. wins for levante, athletic bilbao and sevilla. valladolid drew with celta vigo. a huge shock in the bundesliga, champions bayern munich were humiliated 4—1 at hoffenheim, ending their 32—match unbeaten run in all competitions stretching back to december last year. that sees hoffenheim go top of the table. freiburg against wolfsburg finished 1—1. in italy's serie a, the champions juventus pulled it back to 2—2 at roma. two for ronaldo. napoli, milan and hellas verona all won and are level at the top of the table on 6 points. 4th placed sassuolo were also winners on sunday the formula one world champion lewis hamilton had to settle for third at the russian grand prix

after he was given a ten—second penalty for practising his race start in the wrong place. he could have equalled michael schumacher‘s record of 91 race wins. his teamate valterri bottas took the chequered flag and is now 44 points behind hamilton in the standings. it doesn't matter, it is done now. i ta ke it doesn't matter, it is done now. i take the points that i have got and move on. the race itself though, great comeback from you. i don't really do much, ijust held my position. and we've had the first day of the french open. it should have taken place in may and it's a very different paris in september with a number of players complaining about the cooler conditions. us open finalist alexander zverev came through the first round in straight sets against dennis novak. there was a great matchup of two multiple grand slam winners. stan wawrinka beat andy murray in straight sets. in the women's draw,

venus williams was knocked out by slovakia's anna karolina schmiedlova. go to the bbc sport website for all the results from day one of roland garros. that is it for now. well, as olly mentioned there — the french open tennis championships has got off to a difficult start, with the us open runner up victoria azarenka walking off the court after three games in protest at the windy, wet weather. she called the playing conditions ridiculous. another women's match also started late after the players objected to the cold. the tournament usually takes place in the warm, sunny weather of may and june. thing is pretty different now. former british number 1 annabel croft gave me the view of the players on the cold conditions. it is very unusual for players to complain about weather. i mean, one of the most usual complaints is usually when the players are down in australia, it is too hot, and they

do have protocols in place and they have different ways of measuring what is called the wet ball globe or something. if it is too hot, players are allowed to leave the court and they get a bit of a break. then they will come back. i have never heard players leaving the court because it is too cold. having said that, last year the french open, it was unusually windy. it was extreme wind, extraordinary circumstances and there were a few players complaining about that and having words with officials and what have you. it was similar today, it was pretty horrible, blustery, freezing cold conditions. even so, i think ta blet cold conditions. even so, i think tablet is one of those things players just have to get on with. lots of us work outside in pretty horrible conditions and we complain about it just like horrible conditions and we complain about itjust like they do, but is there something specific to the game. as the risk of injury, is there a serious underlying point therefore the players? as athletes, you do not want to be held on court

for too long. if officials and supervisors are discussing a situation, and i kinda picked up on the fact that she did not want to wait there, it was too cold, and i think her opponent also said the same thing. conditions change dramatically in terms of what happens with the ball, how the court plays, so conditions have a huge bearing on the court. during the french open championships, only started today, rafael nadal is the defending champion and there's been some interesting press conferences where he has talked about how surprised he is at the conditions, but it is also the bulk that they are using. he is talking about how heavy the ball is, how difficult that will be to play with that heavy ball, and with the snow conditions and a heavy ball, i don't think he thinks it will suit him. it is all quite interesting stuff. i guess there is 128 players in the draw at there is 128 players in the draw at the start of the tournament, they have just got to get on with it and

see who comes out on top. that was former british number one annabel croft. for viewers in the uk. now it's time for a look at the weather with matt taylor. good evening. last night, it was northern ireland who recorded its coldest september night on record. tonight, it could be some parts of northern england and southern scotland. with some pretty stormy weather forecast for later in the week, ifancy, our green landscape may look a little more autumnal by the time we hit next weekend. the cold spots tonight will be where we saw the clearer skies today, extending from the south—west of england all the way through into the east of scotland. cloud is going to be increasing across northern ireland, staying in place across eastern england, but through that clearer swathe, we could see temperatures as low as —3 or —4, particularly in south—east scotland and northern england. it is here where we start frosty with a bit of fog but lots of sunshine. still cloudy across the south—east of england, but that will brighten up. northern ireland, cloud

and rain during the morning before sunshine arrives. and then cloud spreading eastwards across scotland into wales and western parts of england through the afternoon, producing the odd spot of rain or drizzle. temperatures will be up a little bit compared with the weekend. the biggest change will be for those across the eastern part of england, as the winds ease down in the sun comes out. through monday night into tuesday, the weather front which is pushing eastwards across the country is going to introduce atlantic air, so we should see temperatures hold up in the sunny spells. a little bit of mist and fog first thing. may take awhile for the cloud and patchy rain to clear from east anglia and the south—east. a few early showers across western fringes of the country but, in fact, most of you on tuesday are dry and sunny. feeling quite pleasant in the sunshine, too, 13—18, not far off where we should be for the time of year. just a degree or so down. but then, as the jet stream wakens up through the middle part of the week into wednesday, a deepening low towards the south of iceland throws in these weather fronts. strengthening winds across the country, bright start in the east but wet and windy in the west. winds touching gale force at times. i reckon it is going to be western

areas that could see the highest of the rainfall total. some eastern areas not seeing much rain during daylight hours but the rain will arrive as we go through the evening and overnight. temperatures around 12—17, but you have got to factor in cloud, wind and rain. it will probably feel cooler than that. as we go, actually, into the end of the week, the jet stream really does make itself known, especially towards friday and into the weekend. the area of low pressure spinning its way up, could produce some stormy conditions and one certainly to watch. in summary, we start off with the frost, but overall rather cool this week, some wet and windy weather mid week, and then that storm potential towards next weekend.

hello, this is bbc news. the headlines: the government defends its decision

to allow students to return to university, despite several outbreaks of coronavirus leaving many confined to their rooms. but in scotland students are told they can return home — as long as they follow the rules on self—isolating. cardiff and swansea have gone into local lockdown tonight, with another three areas in wales facing new restrictions from tomorrow. the murdered police sergeant matt ratana is remembered at the rugby club where he was head coach — as the suspect is named as 23—year—old louis de zoysa. more than 100 people are arrested in belarus, as there's no let up in weekend protests against president lukashenka. now on bbc news, the killing of george floyd, caught on camera by eye witnesses, has led to an outpouring of anger in america. but what happens