this is bbc news. the headlines at 11.003m. more than 200 mp5 sign a letter co—ordinated by labour backbencher david lammy, calling for government promises to windrush migrants to be written into law. south korea says kimjong—un has promised to close north korea's nuclear test site next month and has invited the world to watch. there are calls for an investigation by the competition and markets authority into a potential merger between british supermarket chains sainsbury‘s and asda. also in the next hour can you trust that five star rating? a bbc investigation finds fake online reviews are being openly traded on the internet. and the warming of relations on the korean peninsula is discussed by the dateline london panel. that's in half an hour, here on bbc news. good morning and welcome to bbc news.

more than 200 mps have written to theresa may calling for assurances given to the windrush generation about their citizenship rights to be written into law. the letter, co—ordinated by the labour mp david lammy, said concerns over compensation, housing and legal rights had not been settled. the home secretary, amber rudd, will give a statement to the commons tomorrow afternoon. a little earlier i spoke to our political correspondent peter saull, who has seen the letter and explained what was in it. it accuses the government of making up it accuses the government of making up policy on the hoof when it comes to the aftermath of the windrush scandal. it calls for a lot of the measures that were announced by amber rudd to be back up by

legislation. it was a compensation scheme, more detailed to be given on that, and also on how these individuals get hold of the papers that they need to prove their citizenship. amber rudd is on a lot of pressure, also, over claims that she misled parliament by saying that she misled parliament by saying that she was not aware of immigration target at the home office, for deporting illegal immigrants. brandon lewis has been on the andrew marr programme a short while ago on bbc one. he was actually sent that memo. amber rudd was copied into it. she says yes —— he said, yes, it dealt with regional internal immigration targets from a previous year as an aspiration to increase deportations by 10% the following year. the memo did not talk about those internal targets that they had. i had the memo, and what the

memo out lines is the overall figure from the previous year. i was working to make sure that we were doing everything we could, working with police and local government, making sure that we were doing what we can to help vulnerable people and to crackdown on illegal immigrants. the overall work we were doing and the overall ambition was not on the... targets, she must have known that there were targets. what the home secretary was very aware of was her ambition to see an increase of the numberof her ambition to see an increase of the number of people who were here illegally. those internal targets we re illegally. those internal targets were not in the memo, reginald figures that she was aware of. that was brandon lewis earlier on. amber rudd has been on huge political pressure. lots of calls to resign, do you think she is safe and has

weathered the storm? at the moment. she has got the support of her cabinet. brandon lewis, saying that she is a very good home secretary. but, obviously labour are upping the cause for her resignation. it will be interesting to see how it goes down in the commons tomorrow. also about this question of the memo, whichjust about this question of the memo, which just seems to be rumbling about this question of the memo, whichjust seems to be rumbling on and on and on. well a little earlier — speaking to itv‘s peston on sunday — the mayor of london sadiq khan explained why he was calling on amber rudd to resign. up up until now i have deliberately not... and actually specifically said it is not appropriate for me to talk about resignations of senior members of government. this is not a question of competence, but also conduct. there also needs to be an a cce pta nce conduct. there also needs to be an acceptance that what has happened to

the windrush generation is not an anomaly and is not due to a limited error, it is a consequence of the hostile environment created by this government. the competition watchdog is being urged to begin an immediate investigation into plans for a merger of two of the uk's biggest supermarkets. the lib dem leader and former business secretary vince cable has warned that a deal between asda and sainsbury‘s threatens to create another monopoly in a market already dominated by a few big players. simon clemison has more. two may become one, but it's whether the big four becomes the big three which is now the key question. for years, having at least four separate supermarket giants has been seen as important, meaning customers can shop around. so what if sainsbury‘s and asda come together, still as separate brands but one company? as well as tesco and morrison's, there are now other players — the discounters aldi and lidl. amazon also has a growing presence.

it could mean there is enough choice. a shifting landscape recognised. i spoke to the cma a few years ago, they said talk to us, we are not wedded to the idea of a before, tesco had a market share of 33%, now it's 20% you could see if we had asda and sainsbury‘s together they would have a lower share than tesco one sad. -- 2896. —— 28%. they would have a lower share than tesco once had. but labour says shoppers would sufferfrom rising prices and some staff could be out of a job. the lib dems say an investigation should start immediately. it's competition which has led to pressure on the main players and while that and the need to act has been known for a while, news of the talks between sainsbury‘s and asda has onlyjust surfaced, and yet what would be a huge deal could be put forward as early as tomorrow. simon clemison, bbc news. well a little earlier i spoke

to the former business secretary, and now lib dem leader, vince cable. he told me he understood the business reasons why the two firms wanted to merge, but said the focus should be on the potential impact for consumers. you are going to get a very substantial concentration of power in the marketplace. i mean, in the mid market where this new group will be competing with tesco, they will have a dominant position, and more important, at local level, you will get lots of local monopolies being created. but i was intrigued by the arguments being put out that one of the arguments for this merger is that they will be able to get much better procurement. what that means, they will squeeze the farmers and the suppliers even more, so i think there is a very strong public interest case here for getting the competition authorities, the cma, to investigate it, probably to force them to make divestments — that would be the logical way forward. frankly, in the past, the cma have

been weak in recent years. there were things like the banking system. i'm hoping under the new chairman they will be a little bit more severe. do you think this could costjobs, so potentially it might be damaging or the customers, but also people who work for asda and sainsbury‘s? yes, it's potentially bad news for the employees, for the customers and the suppliers. one of the reasons they are hoping to get large amounts of cost out of it, is acutally by getting rid of their staff. i mean, they didn't put it like that, but that's an inevitable consequence. but the competition inquiry has to focus on the customers — that's theirjob — and i think potentially that is very serious. what will happen, you get a big out—of—town store which has got a complete local monopoly. there will be many more of those once the group merges. sir vince cable, the liberal

democrat leader talking to me a little bit earlier on. officials in seoul say the north korean leader has pledged to dismantle his country's nuclear test site next month, with foreign experts invited to ensure transparency. kimjong—un is also reported to have told the south korean president during their summit on friday that he would change the country's time zone to match the south. our correspondent laura bicker is following events in seoul. this is all coming from south korea, the presidential palace, some of these quotes are coming from the meeting that kim jong—un had with president moon on friday. what do we read into it, it seems kim jong—un has read the news reports saying his announcement last week to close the nuclear test site was met with some scepticism and it seems many people have said it was badly damaged during a test last september. what he is saying is it's not badly damaged, when we dismantle it i will allow us

and south korean experts in and crucially the media in. this has been a closed state for some time, getting any access to north korea is very difficult, there are some news agencies allowed in some presence but they are closely monitored, i think he is saying, hang on, this is some sign that i am trying to make here, that i am serious but let's put a little note of caution in, this is one site he is allowing us to see, we don't know what other test facilities are out there. many experts speculate that there are various sites underground placed throughout north korea so although this is a step forward there are other steps to take. on a visit to the middle east the new us secretary of state mike pompeo has told saudi leaders "gulf unity is necessary" and "must be achieved". he has condemned iran's falls of

instability. officials travelling with him have called for further sanctions against iran over its ballistic missile programme. citing recent missile attacks against saudi arabia by iranian—backed yemeni houthi rebels, mr pompeo's team warned of the threat posed by teheran. we all must honestly confront the crisis of islamist extremism. and the islamist terror groups that it inspires. and this does indeed mean standing to gather against the murder of innocent muslims, the oppression of women, the persecution of jews and the slaughter of christians. saudi arabia's vision for 2030 are inspiring initiatives, they promote tolerance and expect and they empower women. we strongly support this important work in the leadership that the crown prince has shown to advance our shared economic interests. i also stress that gulf

unity is necessary. we need to achieve it. the eu's chief brexit negotiator, michel barnier, has said the time has come for the uk to "resolve the contradictions" in its irish border policy. mr barnier was writing in ireland's sunday independent newspaper, ahead of a visit to the country tomorrow. he said there needed to be "substantial progress" on the issue by the next meeting of eu leaders, injune. four people have been taken to hospitalfollowing a hit—and—run incident in newport. a police cordon has been set up on cambrian road in the city centre — after the collision at about 5.30am this morning. gwent police say two women have received "potentially life changing injuries". a car was found burned out in a nearby street, a short time after the incident. members of the united nations security council have travelled

to bangladesh to visit refugee camps in cox's bazaar. the area is home to nearly 700,000 rohingya muslims fleeing violence in neighbouring myanmar. on monday, they will meet the country's leader, aung san suu kyi, before visiting rakhine state, the centre of what the un has described as ethnic cleansing. our myanmar correspondent nick beake has more details on the visit. this is a significant moment, what we have here is leading members of the international community deciding that the situation in bangladesh, the rohingya crisis, poses a potential threat to the stability of this part of the world, it's not every day we see the likes of china and russia agree with western powers that they should join forces to go and see what is actually happening on the ground, there are two key aspects to this visit, members of the un delegation talking to some of the 700,000 rohingya people who fled from the military crack down in myanmar. the second part of the visit will be

tomorrow, they will talk to aung san suu kyi, the de facto leader, who has come under criticism for failing to speak up against the military. the un says there is no way at the moment that conditions in myanmar are ready for the safe and dignified return of rohingya refugees, if of course they want to come back because when we listened to the stories of murder, sexual assault and other persecution they speak about, many people are far too frightened to go back. the un drawing attention to 450,000 rohingya still in rakhine state, trapped without citizenship, access to education, health care, that sort of thing. as for the repatriations deal, the big problem is the un and international community is not involved, it is a deal between myanmar and bangladesh and so far we have seen no movement, people have not been willing or put

in a position where they could come back if they wanted. the headlines on bbc news: more than 200 mps sign letter to the prime minister calling for government promises to windrush migrants to be written into law. there are calls for an investigation by the competition and markets authority into a potential merger between british supermarket chains sainsbury‘s and asda south korea says kimjong—un has promised to close north korea's nuclear test site next month and has invited the world to watch. sport now and for a full round up, from the bbc sport centre. thank you very much indeed. we will start with football. champions manchester city football club or to

west ham with a record points haul in their sights. pep guardiola's side is currently on 90, and with four games left to play, chelsea's record total of 95 is well within their reach. arsenal travel to manchester united, with arsene wenger‘s last match against the manchester team. after so many battles against united in the past, he has been unable effective mood. need to be focused on winning the game. for me, it will be at stake to recover from that result, and before, we go to atletico madrid, to have a good game. if i get a good reception, take it. rangers say they are confident that steven gerrard will be benyu manager. —— their new

manager. you could be confirmed as their new boss in the coming days. rangers play celtic today, and could be crowned premiership... it is 0—0 on aggregate. chelsea also play this afternoon, but they have got it all to do, having lost the first leg 3-1. to do, having lost the first leg 3—1. day nine of the world snooker championship which is well under way. let's cross live now to the crucible. they are into the fourth frame of their second—round match with walden holding a narrow 2—1 lead. on the other table, ding junhui is 4—1 up against anthony mcgill. great britain have been demoted to the top flight of world ice hockey the first time and to

devote yea rs. ice hockey the first time and to devote years. britain came from 2—0 down against hungary to secure promotion and the gold medal. it means that next year they will play the elite nations such as canada, russia and sweden. it was a momentous occasion for the sport in this country, as he told me a few moments ago. great britain are ranked 24th in the world. they were the lowest ranked team going into this tournament. everybody was inspecting them to go straight back down to where they came from having had promotion 12 months ago in belfast. for them to go off and do what they have done, which is win a gold medal, and be the first team in the history of the sport to bounce from the third tier to the second tier, to the top tier, and winning gold medals on this occasion, is just phenomenal. this is the sort of result which will resonate with people who don't necessarily follow ice hockey. what could it do the sport in britain? it is a great sign

that i'm here talking about it for the sport. there are a lot of people who play in the uk. over 8000 players registered with the governing body. lots of people go to watch it. but it has been difficult to convert those younger players into superstars. there is a great story for great britain, they gave an 18—year—old, leon clarke, his international debut. he will be scattered in all likelihood. they are starting to produce talent that can go on to the world stage. for great britain, this is an achievement that will go down in history books. you look back at what happened in budapest, and it will be one of those red letter days for british ice hockey. many congratulations to gb ice hockey. that is all the sport for now. i will have more for uni next hour. 0k, will have more for uni next hour. ok, richard. lovely stuff. thank you very much. a bbc radio 5 live investigation has uncovered a boom

in fake online reviews despite official warnings three years ago that they needed to be curbed. the competitions and markets authority has estimated that around £23 billion spent every year is influenced by feedback on review sites. earlier i spoke to 5 live investigates presenter adrian goldberg, who told me more about theirfindings. this is big business, we are talking about 23 billion pounds worth of influence, £23 billion worth of goods, that are bought following the reading of online reviews. as you say, three years ago, the competition in markets authority announced that there needed to be a crackdown, so we decided to look at just how successful the crackdown on the abuse of online abuse has been. —— online reviews has been. forjust dollar and 99, you could buy a positive review on ebay. that is a review that we wrote which was then posted on the trust pilot website.

we discovered, for example, that amazon, which in 2017, cracked down on freedom products in return to positive reviews, you could go to closed facebook groups, and if you went on to them, you would be contacted went on to them, you would be co nta cted by went on to them, you would be contacted by people who say to you, if you write as a positive review, we will refund what you paid for the product in the first place. so, although amazon were tried to crackdown on free reviews, that is effectively what is still going on by these closed facebook groups. in developing countries, we have been told that their review farms where people will write you positive reviews for a relatively small amounts of money. so, it is clearly amounts of money. so, it is clearly a booming business. that is ageing goldberg. you can get more on that story from the five live website. —— thatis story from the five live website. —— that is adrian goldberg. australia is promising

to spend £290 million to help restore and protect the great barrier reef. the world's largest reef system has been damaged by warming sea temperatures, which has bleached large swathes of coral in recent years, as well as pollution and run—off of pesticides and fertilisers from farms. phil mercer reports from sydney. the great barrier reef is australia's best treasure. footie yea rs australia's best treasure. footie years running, it was hit by major coral bleaching, which scientists blame on warmer sea temperatures. then there was an assault by correlating starfish. these ferocious predators will be targeted by the new multi—million dollar plan to revive and restore the reef. farmers near the queen santa coast will be in courage to change their ways, to reduce the flow of fertilisers and pesticides into the sea. it is part of a pledge that the australian government says is the

single largest investment ever in the great barrier reef. we will also be providing money for scientific research to build more resilient coral to deal with heat stress and light stress. we will be putting money towards better data management, said that we understand better what is happening in the reef, so that we can deal with the challenges. in terms of working with local indigenous communities, the traditional owners who have such a big role to play. ministers say there will be efforts to mitigate there will be efforts to mitigate the effects of climate change, but they gave no specific details. critics accuse them of being hopelessly an able of tackling the climate emergency facing this underwater paradise. the government in canberra has previously said an ambitious target to cut the nation's emissions by 2030, but this is a

country heavily dependent on cheap supplies of coal for its power. conservationists argue that until this reliance on fossil fuels is broken, there can be no real hope of preserving the great barrier reef. it's eight weeks since a nerve agent attack left a former russian spy and his daughter in a critical condition in hospital in salisbury. yulia skripal has been released but her father sergei is still receiving treatment. the events of the 11th of march have had a lasting impact not only on them, but on salisbury, with businesses and tourist attractions across the city continuing to report a fall in takings of as much as 70 percent. simon jones has more. most of salisbury may be open for business, but the police cordons remain. a reminder of what happened here eight weeks ago. at this shop overlooking the spot where sergei skripal and his daughter yulia were found

poisoned on a park bench, they say some weeks' takings have been down by 70%. to suddenly go from a busy walkway, having a very busy shop to having almost no one coming, i can go three hours with no one walking past, its a shock and i think everybody has found that difficult. we've actually come together and supported each other. here at salisbury cathedral visitor numbers have fallen by up to 30% this month, compared with the same period last year. some of that is being put down to the weather, they are hopeful that reassurances by government officials that salisbury is safe for visitors will finally start to get through. the start of a pub crawl. if you want to go on an historic tour, see ed. put your hand up, ed... the latest event to try to persuade people back to the city, but some want reassurance. it's a scary world at the moment. i think anywhere you go, you didn't expect it

in salisbury, definitely not. hopefully it will pick up. i'm a little bit concerned about the children. my son walks through the town centre every day, but not unduly. no concerns whatsoever. the decontamination process is beginning slowly. yulia skripal has been released from hospital but her father remains there. at this shop they hope some good can come from the traumatic events. i believe we could look back in years to come, and whilst this has been a difficult time in salisbury‘s history, we could see this as a turning point. financial support is being made available for badly affected businesses, but many fear a return to normality could be a long way off. gaming is big business — it's creating a new wave of celebrities and it's even been tipped as a new olympic sport. now, a 13—year—old from kent has become one of the world's youngest

professional gamers. kyle jackson has become so good at the game fortnite that he could start earning serious money. joe lynam went to meet him. for many of us, fortnight is the length of time you spend on your holidays overseas every summer. but for millions of young people, it's the hottest video game on the planet right now. and for this 13—year—old, it's potentially a lucrative future career. kyle jackson is so good at fortnite that he has been signed to play with a team of professional gamers. so how did he start? played video games all my life basically. i started playing competitively when i was around nine or ten. i got into, like, halo, call of duty, games like that, and ijust — i realised that i could probably, like, go to a pro level if i kept playing at the level i am at that age. gaming is no joke. it's big business. thousands of people pay to watch the experts at play

around the world. there are even celebrities. it's becoming a multibillion—dollar industry, just games, production of games, publishing of games, and the e—sport scene, so it's notjust one thing now, it's a whole industry that's, you know, wrapped up in a bow. in the game, you need materials to build. kyle says he is doing well at school, and that allows him to do what many boys dream of — play games and make money. joe lynam, bbc news. let's get the latest weather forecast for you. max taylor has got that. thank you very much, ben. dark blooming rain clouds. if you spot of rain, here, but much of scotland, northern ireland, and good part of england and wales. temperatures are up england and wales. temperatures are up to around 13. single figures where we have got the cloud. it will

thicken up and rain and hail is bedding in across east anglia and the south—east. a widespread frost developing as we go into monday morning. if you are in... much of central and eastern england, cloudy, and 50 mph gusts up across east anglia and the south—east. this is where we will see the persistent rain. a bit of sleet mixed in over the hills. it will creep in to the midlands. sunshine in the west, highs of around 1a. this is bbc new. our latest headlines... more than 200 mps have signed a letter, coordinated by the labour backbencher david lammy, calling for government promises to windrush migrants to be written into law.

there are calls for an investigation by the competition and markets authority into a potential merger between british supermarket chains sainsbury‘s and asda. south korea says kimjong—un has promised to close north korea's nuclear test site next month — and has invited the world to watch. on his first visit to the middle east as the new us secretary of state, mike pompeo has bitterly condemned what he called iran's efforts to destabilise the region. now on bbc news, it's time for dateline london.