the this is bbc news. i'm ben brown. the headlines at midday. labour's david lammy leads 200 mp5 who've signed a letter calling for 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 click visits a cryptocurrency mine in iceland and investigates a new and growing crime amongst hackers. that's in half an hour here on bbc news. good afternoon 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 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 wants a compensation scheme, more detail 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 under a lot of pressure, also, over claims that she misled parliament by saying that she was not aware of immigration target at the home office, for deporting illegal immigrants. the former immigration minister, 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. 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

outlines is the overall figure of the achievment 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 number of people who were here illegally to be removed. those internal targets were not in the memo, and not 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. she will return and have to answer some questions in that letter, also about this question of the memo, which just seems to be rumbling on and on and on. 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 threatened 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 which experts say is already recognised by the cma. 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 28% you could see if we had asda and sainsbury‘s together 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 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 on 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. the north korean leader is reported to have promised to dismantle his country's nuclear test site next month, with foreign experts invited to ensure transparency. it's also believed kim jong—un 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 his first visit to

the middle east as the new us secretary of state, mike pompeo has condemned what he called iran's efforts to destabilise the region. after talks in saudi arabia, mr pompeo reiterated america's determination to prevent the iranians ever getting a nuclear weapon. the us secretary of state said iran has shown worsening behaviour since the 2015 nuclear deal, and he blamed tehran for supplying weapons to houthi rebels in yemen. mac is made aware of the deal was approved. this is in violation of the un security council resolutions. they continued to fire missiles into saudi arabia on a regular basis,

wrestling the saudi people. while we will continue to assist saudi arabia with it the fence, and support its right to defend its own borders, a political solution is the only way to advance long—term since the ability in the yemen and end the suffering. 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 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 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 five thirty 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. 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 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 annd markets

authority announced needed to be a crackdown, so we decided to look at just how successful the crackdown on the abuse of online reviews has been. forjust one 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 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 are review farms where

people will write you positive reviews for a relatively small amounts of money. that is adrian goldberg. you can get more on that story from the five live website. and you can get more on that story via the 5live website. that's at bbc.co.uk/5live. the headlines on bbc news: labour backbencher david lammy leads 200 mps who've signed a letter calling for 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. richard. thank you very much indeed. we will start with football. celtic could be crowned champions of

the scottish league today. celtic arei—0 up. the scottish league today. celtic are 1—0 up. rangers have said with confidence that steven gerrard will be venue confidence that steven gerrard will be venue manager confidence that steven gerrard will be venue manager in the coming days. a p pa re ntly be venue manager in the coming days. apparently talks between the club and the former england captain have done well. manchester city travel to west ham today with a record points all 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. arsene wenger travels to old trafford to take on manchester united for the last time as arsenal manager. full commentary on that on bbc five live at half past four. after so many battles in the past, arsene wenger has been in reflective mood. i don't know what kind of reception i will get, but i will be focused on winning the game. it has been one of the great battles in 22

yea rs, been one of the great battles in 22 years, and foamy, it will be at sta ke to years, and foamy, it will be at stake to recover from that result. ifi stake to recover from that result. if i geta stake to recover from that result. if i get a good reception, i will ta ke if i get a good reception, i will take it. magister is it a great leon —— manchester ‘s play lyon. chelsea also pay this afternoon and have it all to do, having lost the first leg. it is day nine of the world snooker championship. there's cross live to the crucible. ricky walden is on the first match, and they are into their fifth frame. walden is holding a narrow three to lead. on the other table, another former finalists, ding junhui is up to a good start against anthony. great

britain have been promoted to the top flight of world ice hockey for the first time in 25 years. britain came from 2—0 down as well against hosts hungry, to achieve promotion. they will play canada, russia and sweden, the world's top teams next season. it was a momentous occasion for sport in this country. 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, isjust 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, liam kirk his international debut. he will be scouted 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 you in the next hour. ok, richard.

lovely stuff. thank you very much. 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 greatest national treasure. for two years running, it was hit by major coral bleaching, which scientists blame on warmer sea temperatures. then there was an assault by coral—eating starfish. these ferocious predators will be targeted by the new multi—million dollar plan to revive and restore the reef. farmers near the queensland 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, so that we understand better what is happening in the reef, so that we can deal with the challenges. we will be spending money, 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 the effects of climate change, but they gave no specific details. critics accuse them of being hopelessly unable of tackling the climate emergency facing this underwater paradise that snakes down

north eastern australia. 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 fossilfuels is broken, there can be no real hope of preserving the great barrier reef. let's get more on our main story, and more than 200 mps have signed a letter to theresa may calling for government promises to windrush migrants to be written into law. let's speak to the labour mp david lammy, who co—ordinated the letter. hejoins us from north london. thank you very much for being with us. thank you very much for being with us. first of all, why do you feel that these promises that have been made by the government need to be an shined in law? well, look. we have had an apology and lots of words from the dispatch box, but all of those mps note that in the

immigration area, nothing is real until it is legislated on. and the windrush generation and commonwealth citizens now needs guarantees, they need guarantees about compensation, about the burden of proof, the evidence that they are being asked to supply, and also to understand that if they don't meet those thresholds, will there be enforcement to deport them? for all of those reasons, their rights be to be enshrined, and the best way to do that quickly is with a statutory law in parliament. you are saying in a nutshell, you do not believe the government's promises, you don't ta ke government's promises, you don't take their word for it? you don't trust them? it is notjust take their word for it? you don't trust them? it is not just that you don't believe them, it is just that there is no affecting any of it, until there is proper legislation, because immigration law in our country is quite complex. people's legal advisers need to understand what those rights and obligations are, and you can'tjust make law up on the hoof from the dispatch box.

it has to be legislated on. people have to know where they stand, and the government must know that we need the statutory instrument pretty quickly. what you think about the home secretary's position, now? various people have called and had to resign? she has admitted making some mistake and apologise, is that enough? doug, i have just some mistake and apologise, is that enough? doug, i havejust said in the past that if you look at your reports, there are huge pain and hurt that has been caused to people. heartbreaking, absolutely heartbreaking stories. the shame that it has brought on our country. if it were me and i were the minister, i would if it were me and i were the minister, iwould have if it were me and i were the minister, i would have fallen on my sword and have someone else come in and make sure that they can get this through. that is a matter that amber rudd. iam through. that is a matter that amber rudd. i am not really concerned about the personalities. i am concerned about the government to

use “— concerned about the government to use —— the guarantees the pensioners in our country who have always been british citizens and deserve a government to bring forward legislation to enshrine their rights once and for all. but some people are saying that labour are playing politics with all of this. a convenient time with local elections coming up, and that they are playing politics, calling for the home secretary to resign? looks, i don't think you are playing politics if you think about people who have been imprisoned in their own country. if you think about people who have been trapped abroad, unable to return for children's weddings, unable to take up children's weddings, unable to take up employment that they had. people have been unable to get cancer treatment. frankly, there is nothing more serious, in any country, then imprisoning people who have never have been imprisoned. if that is not something that a political party should be taking up, i don't know what is. my letter has been signed

by six parties, including conservatives. so, ithink by six parties, including conservatives. so, i think it is cross— party, conservatives. so, i think it is cross—party, now. that we have action, real action on behalf of the windrush generation, when you talk. might bite and when you talk about legislating on this, how quickly —— and when you talk about legislative honours, what is the timescale keys how quickly did that happen?” honours, what is the timescale keys how quickly did that happen? i have beenin how quickly did that happen? i have been in parliament 18 years and i have seen legislation is on a monday and be cleared on a wednesday. if we can do it for other things, we can do it for this group of people. if we act quickly. and if we consider them serious enough. thank you very much for your time. thanks for being with us. for the second year running president trump snubbed the white house correspondents' dinner last night. mr trump — well known for his turbulent relationship with the mainstream media — decided to spend time instead with supporters in michigan. andrew plant has more. a glamorous a—list extravaganza.

a fixture of the washington calendar. but this year's white house correspondents' dinner had one notable absentee — the president, who left in helicopter marine one earlier in the day, snubbing the event for the second year running, holding a rally in michigan instead. you know, you may have heard i was invited to another event tonight, the white house correspondents' dinner. booing. but i'd much rather be in washington, michigan than in washington, dc right now, that i can tell you. mr trump was stung here seven years ago — before his presidency — by barack obama, who mockingly called mr trump ‘the donald' and ridiculed his alleged belief in conspiracy theories. mr trump has said it is due to fake news stories that he chooses to forego the event, often arguing he receives unfair media coverage.

the correspondents' association dinner now attracts the biggest names in american entertainment, but after around 100 years of evenings with the president, the biggest name in american politics has clearly decided he won't be continuing the tradition. andrew plant, bbc news. time for a look at the weather with matt taylor. hello. strong winds, heavy rain on the way to parts of central eastern england tomorrow. out there at the moment, relatively quiet. we will see rain arrive towards the south—east corner, channel islands, with strengthening winds later this afternoon. but much of the uk, a bit of sunshine here and there, one or two isolated showers, many will be dry, and temperatures as they have been through recent days. into tonight, though, that rain starts to develop more widely across east anglia, the south east, the channel islands, wind becoming gale force by the end of the night. further away from the south east you are, clear skies, lighter winds, scotland, northern ireland, far west of wales, a bit of frost

into tomorrow morning. but here, a dry and reasonably sunny day to come. towards that south—east corner, though, for the morning rush hour we could see winds gusting in an excess of 50 mph, heavy rain in lincolnshire, east anglia, the south east, channel islands, going to be there or thereabouts all day long, turning the a little bit of sleet on the tops of the hills too. spreading its way into the midlands and yorkshire through the afternoon as well. the risk of some flooding and some pretty rough seas around those north sea coasts as well. four or five degrees where you have got that rain. to the north and west, though, a good deal of sunshine with highs of 1a.