this is bbc world news today. our top stories... hundreds of marches take place across the united states in protest at president trump's immigration policies. the european union remains split on migrants, with hungary denying signing up to a deal with germany to take back asylum seekers. forging a new future for steel in europe — thyssenkrupp and tata weld themselves together. and uruguay has beaten portugal 2—1 in the knockout phase at the football world cup. hello and welcome to world news today. thousands of protesters in the united states are marching across the country against president trump's immigration policies. protestors are gathering using the slogan "families belong together". you're looking at one of more than 630 events calling for migrant families split up at the us border

to be reunited. it should be pointed out that the rallies were organised before mr trump ordered an end to the widely criticised "zero tolerance" policy of separating children from their parents, although most of the 2,300 children taken to detention centres or into foster care are yet to be reunited. chris buckler has been speaking with protestors in washington. the separation of families has really led to a rallying call here in washington dc and right across america. this is just one of a number of protests that are taking place in order to highlight the policy and also try and send a message to president trump. we are of course in sight of the white house. hannah and michael are two of the people who have gathered as part of this protest. there are thousands here, but do you think mr trump will listen? i don't think he will listen. i think it might get to him but i'm

not sure it will actually lead to him doing what we want him to do, which is reuniting children with their parents and keeping families together when they try to cross the border. of course, michael, he has committed to reuniting those families, but we know there are hundreds if not potentially thousands that are still separated. right. i think we need an independent actor here to ensure that these families are indeed united. i don't trust this administration to reunite these families at all. as we're seeing, we're already seeing children being put up in front of immigration judges on their own and without their families. they're clearly not being reunited, and we need someone else to make it happen. what i noticed from your poster is that you say "abolish ice now". that is the immigration and customs enforcement. ice officers seem to be a bit of a hate figure for a lot of the people in this crowd. but at the same time, america has to have secure borders and you can't welcome everybody, as much as some people would like to. i'm not a policy expert, but i believe that when people

are fleeing violence and corruption and death and destruction, they should be treated with dignity and with kindness. that is not what's happening here. ice agents are setting up checkpoints in non—border states. they're setting up checkpoints in massachusetts and new york and asking people for documentation. and it's troublesome. they're kicking down people's doors and arresting them for deportation, even if they've been here for years. like i said, i don't have a solution, because i'm not an expert. but i am here protesting because families deserve to be kept together, especially in a very traumatic time when they are trying to flee. but michael, the reality is that this border divides, and we are heading to a divisive election, aren't we?

yes, very divisive. i will be voting in the mid—terms, for sure. one thing i have found hope in is more democratic leaders taking up "abolish ice" as a slogan and as a platform. it's just strayed so far from its creation just 15 years ago. it's a very new agency and has no place here any more. michael and hannah, thank you both very much. that issue of ice is a problem for the democrats, because they're trying to get an immigration policy that they can all work around. but of course, this is a divisive issue and i can assure you, there will be a lot more talk about this as we head towards those mid—term congressional elections here in the us. a spokesman for hungary's government has denied reports that it is one 01:14 eu states that have entered a migrant repatriation agreement with berlin. it would see them take back migrants that initially registered in their countries before travelling on to germany. german chancellor angela merkel has been facing a political crisis at home over her approach towards migrants.

these pictures are from austria, where chancellor sebastian kurz has said curbing illegal migration will be a top priority of his country's six—month eu presidency. he was speaking at a ceremony in the alps for the handover of the presidency from bulgaria. bethany bell is in vienna with more details. sebastian kurz has promised to make the fight against illegal migration a major priority for austria's eu presidency. he's welcomed the deal that was reached earlier this week in brussels, but he says now it's a question of trying to implement that quickly. but there is still quite a bit of confusion about the details of this. eu leaders have agreed to set up asylum processing centres. it's not clear in which countries those will be or how quickly they can be brought into being. what sebastian kurz has said is that he wants to shift the focus from repatriating asylum seekers within eu countries to strengthening europe's outer borders, but there are still a great number of differences as to the best way

of dealing with that, and germany in particular has tried to strike up agreements with 14 eu countries to repatriate some of those asylum seekers. this is a complex political problem for the eu, and there are a great many disagreements about it still. but it has to be said that while the problem is political, the number of migrants who are reaching europe at the moment has dropped significantly since the migrant crisis of 2015—16. two major steel producers, thyssenkrupp of germany and india's tata steel, have agreed to merge, in the biggest such deal in europe for more than a decade. the new company will be the second largest steel manufacturer in the region, employing almost 50,000 people. the two firms have been in negotiations for more than a year.

they had previously warned that about 4,000 jobs could go as a result of the merger. tomos morgan reports. jobs have been cut, pension terms reduced, but now it seems the steelworkers have some security. port talbot is home to almost half of tata's british workforce, and today's news is most welcome to scott barmsey, who along with several family members, has worked in the steelworks all his adult life. morale has been really low over the past few years. i think today has given us some sort of clear future and a bit of a weight off our shoulders. thyssenkrupp tata steel bv will be the second biggest steel—maker in europe. together, they will have a workforce of around a8,000. the 50/50 joint venture anticipates cost savings of between £350 to £440 million a year. due to the increased size of the new company, the annual sales will be

about £13 billion. within the merger is a commitment to invest in extending the life of the blast furnace, a key part of steel production in south wales. without this commitment, the rest of the uk operation suffers, something the unions have battled for all along this process. we need a period of stability, not worrying about their jobs or the security of them, just getting on and making steel, which is what they are best at. a larger european giant, better equipped to deal with the world market, comes at a crucial time as the imminent threat of the recent us steel tariffs and the knock—on effect looms over the industry. the government says it will continue to work closely with new management teams and trade unions as the new company develops its business plan. there will be some voluntary redundancies as part of the merger, mostly in administrative roles, but no compulsory redundancies for steelworkers at port talbot and tata's other uk factories, so some certainty and security for now, at least,

after a turbulent few years. tomos morgan, bbc news, port talbot. two heavyweights of the footballing world, ronaldo and messi, are both out of the world cup in the first day of the knockout phase. uruguay beat portugal 2—1 and france knocked out argentina in an exciting day of football in russia. 0lly foster is following the world cup in moscow. what a start we have had to the round of, the first knockout round. this is when the world cup gets serious and yes, those two shining stars of the game are going home after two very different matches. we will get to the french match in a moment but in the last couple of minutes in sochi, cristiano ronaldo, we saw him just wandering around the pitch looking forlorn at the

full—time whistle because they were beaten 2—1 by uruguay. edinson cavani was uruguay‘s matchwinner. a lovely cross from luis suarez, look at that header. it actually came off cavani's face, off his nose, but still found the top corner, his second after pepe had equalised for portugal was a beauty. swept it home, so portugal are going home. uruguay, who looked very good in the group stages, we shouldn't be too surprised by them. it is four wins out of four for them now and they are through to the quarterfinals, where they are going to be playing the french. what a match that is going to be. the french stunned argentina 4—3. this match had just about everything, obviously lionel messi on the losing side has been so out of sorts here in russia. but the french were 1—0 up, then 2—1 down. they finally won 4—3, their hero a

teenage superstar, kylian mbappe. number ten is often worn by great players, but at 31, time is running out for lionel messi to match the glory of maradona and pele. pretenders to his throne include kylian mbappe. still a teenager, his searing pace caught argentina out from the start. antoine griezmann might have scored, but the goals made by france's number ten. argentina have been in turmoil at this tournament, but they should never be written off. it looked like they had turned things around when angel di maria levelled before half—time. then gabriel mercado put them ahead, thanks to messi's assist. france were back on terms when pava rd france were back on terms when pavard scored his first goal for his country. with things in the balance, someone needed to shine, and it was mbappe who was quick to steal the limelight, putting france ahead and then extending their lead. there was enough time for the master to set up sergio aguero, but it was too late to stop his error apparent from sending argentina home. is it too soon to call that game a

world cup classic? i have been calling it a classic for the last few hours. it was brilliant. that matt in kazan, the one between france and argentina, seven goals between two former world champions, lionel messi out of sorts, all the stories that were swirling around that argentina, with player revolt and player fights, the that argentina, with player revolt and playerfights, the manager sidelined, did he really big that team? some people say messi was actually managing the team. it was an absolute classic. we were gripped, and then of course we have the emergence of kylian mbappe on the emergence of kylian mbappe on the greatest stage. we already knew how special he was as a player, the 19—year—old. but to score two goal is to knock argentina out, it was a classic, in answers to your

question. notjust as described by experts, but around the world. wimbledon isjust experts, but around the world. wimbledon is just around the corner and the former number one andy murray in his news conference, he was more interested in what was going on in that match that was under way at the time than his own prospects at the all—england club. i can't believe i'm missing this much. what's the score, 4—2? what's the score? 3-2. 0k. shall we just go and... 4-2. well... yeah. andy murray never seems happy anyway, and he was missing one of the match is notjust in russia, but a classic. what can we look forward to with the second round of knockout matches? we have denmark facing croatia. that is the evening match in disney novgorod. but moscow will

come alive because we will get to see the hosts playing the former world champions spain at the luzhniki stadium, so russia will expect once again. they have already exceeded expectations just to get into this knockout round. thanks, lee. let's go back to those protests against president trump's immigration policies. for more context on this i'm joined by david fitzgerald of the center for comparative immigration studies at the university of california san diego. the us has handled mass migration issues many times before. what is different on this occasion? what is different on this occasion? what is different is that the trump administration has deliberately ignored the long—standing effective policies that we have to be able to give people seeking sanctuary in the usafair give people seeking sanctuary in the us a fair hearing to find out if they meet the criteria for being granted asylum, or if they don't, to

be repatriated back to their countries of origin. we have a long history of being able to handle much larger flows than we have been seeing at the border here. in 1980, 120 5000 cubans came in the span of just a few months, and that was a process that the government was able to handle, and the even larger numbers came in the vietnam world warand in world numbers came in the vietnam world war and in world war ii, so we know what to do, it is a question of having the political will to do it. so you are saying it's a question of good practice. and as part of your job, i know you are always talking to migration experts. who should the us be looking towards when it comes to good practice on irregular migration? i don't think the us necessarily needs to look at the example of what other countries are doing. i think we have developed the

tools over our doing. i think we have developed the tools over oui’ own doing. i think we have developed the tools over our own history. but if you look for contemporary examples, there are certainly cases of other countries doing a much betterjob than the us of handling the question of unauthorised migration. 0ne than the us of handling the question of unauthorised migration. one of the practices that we see in places like canada that we used to see in the us, is for example, looking for alternatives to detention. instead of taking people who are asking for asylu m of taking people who are asking for asylum and locking them up, sometimes having them post bonds, sometimes having them post bonds, sometimes having them wear a gps and sometimes having them wear a gps and sometimes having them call in or be visited by government agents to make sure that they are still here and still complying with the terms of their release. and we have seen that those programmes are effective. the majority of asylum seekers who are in alternative detention come to the court hearings. and when it comes to europe specifically, we have been talking a lot about the numbers on the fact that they are going down. why do you believe it is such a

political hot point right now? because it is possible for politicians and yellow journalists to use immigrants as scapegoats, frankly. they typically have been able to do this in places that don't have that many immigrants. if you look at the brexit vote in the uk, for example, it was in parts of the uk that had fewer immigrants where people were more likely to vote for brexit, and you find a similar pattern in the us. it is the parts of the us with lower levels of immigration which are much more likely to support donald trump, and places like california, where i live, where 27% of the population is foreign—born and hillary clinton won 4 million more votes than trump. there is often also a gap between the political discussion about migration and the actual facts on the ground. as you mentioned, in

europe, the number of unauthorised immigrants arriving has gone back to levels before 2015 and in the us, unauthorised immigration from mexico coming across the border is down to levels that we haven't seen since the early 1970s. so that is one thing that political partners can agree on, that the numbers are going down. thank you very much, david fitzgerald. stay with us on bbc world news, still to come: new research finds a significant link between air pollution and diabetes. we're live in the us to speak to the lead author of the study. this is bbc world news today. the latest headlines... hundreds of marches are taking place across the united states in protest at president trump's immigration policies. the issue of migration continues to divide the eu, hungary denying signing up to a deal with germany to repatriate of asylum seekers. now to uganda, where hundreds of protesters have marched through the capital kampala,

demanding police action over a spate of rapes, murders and kidnappings, targeting women. janey mitchell reports: stop the rapists! anger over the murder of more than a0 women in kampala since last year has boiled over into the streets. with demands for justice over into the streets. with demands forjustice for over into the streets. with demands for justice for the victims, over into the streets. with demands forjustice for the victims, many of them young and mothers and whose cases remain unsolved. what sort of society are we living in where a2 women are dead and we are asking what they were wearing, how many boyfriends they had? that is such a rape culture and victim blaming mentality. among the marchers, ambassadors from the us and france, demanding improved security for staff who are afraid to go out. translation: this violent is intolerable. i am side by side with ugandan women for better protection, because women are the backbone of

society. critics say the police response has been inadequate, accusing the ugandan force of devoting too many of its resources against opponents of the country's long serving president. but for some marchers, the blame lies with ugandan society as a whole. in africa, it is the responsibility of the men to protect the women. and we men have failed to protect our wives. we have failed to protect our mothers and we have failed to protect our daughters. the message to uganda's government is that women's lives matter, and they have had enough of living in fear. a study in the united states has found a significant link between air pollution and an increased risk of diabetes. scientists estimate that in 2016 outdoor air pollution contributed to one in seven new cases of diabetes globally. around a20 million people are suffering from diabetes, and it's thought that pollution was responsible for 9 million premature deaths in 2015.

we are nowjoined by the lead author of that study, dr ziyad al—aly. he is an assistant professor of medicine at washington university. we often hear talk about diabetes and we associate it with obesity and unhealthy diet and an inactive lifestyle. this is spectacular news. i'm delighted to be here with you. it is correct that obesity, unhealthy diet and sedentary lifestyle are unhealthy diet and sedentary lifestyle a re major unhealthy diet and sedentary lifestyle are major drivers of diabetes worldwide. but it is also undeniable that air pollution contributes significantly to the global burden of diabetes. let's

talk about what you found. how does pollution contribute to the rise of diabetes? our epidemiologic findings linka high diabetes? our epidemiologic findings link a high level of air pollution with diabetes. the way it mostly works is that when we inhale pollutants, they not only enter our lungs, they also get into the bloodstream, where they travel to the pancreas and cause the pancreas to secrete insulin. we found in our study is that there is a link between air pollution and diabetes. it started at levels that are substantially it started at levels that are su bsta ntially lower it started at levels that are substantially lower than what is currently recommended to be safe by the world health organisation. so what does this mean in terms of prevention, diagnosis and treatment? it means that reducing air pollution

worldwide, especially in highly populated areas, will likely ameliorate the burden of diabetes in those metropolitan areas and also worldwide. the epidemic of diabetes is definitely driven by obesity and an unhealthy diet and lack of exercise, but air pollution is certainly contributing to a significant number of diabetes worldwide. as you mentioned, one in seven diabetes cases is likely related to abolition. thank you for your insights. a great white shark has been spotted near the spanish mediterranean island of majorca. this footage was captured by a wildlife conservation group. it's the first time such a shark has been seen in this area the last confirmed sighting of such a fish in the balearic islands

was by a fisherman in 1976. great whites can weigh up to two tonnes, grow to lengths of 20 foot and reach speeds of a0km per hour. 0ur our top story single that protests are taking place against president trump's immigration policies. you can reach me on twitter — i'm @krupapadhy. we are always keen to hear your comments. thanks for watching bbc world news. we didn't quite make it six days in a row with 30 degrees heat, but we

we re a row with 30 degrees heat, but we were not far away and for most parts of the uk, it was another day with lots of strong sunshine and hardly a cloud in the sky. for tomorrow, then maybe a bit more cloud in few areas. for many of us, it will still be hot and sunny but there is the chance of catching one or two showers and maybe some thunderstorms. the main chance of catching those comes from this area of cloud around a slowly rotating area of low pressure that is pushing that cloud towards the north—west of the uk. there is more humidity for southern parts of the uk, with the wind more from the south—east this time. at the moment, very little wind around at all. we will see some short lived missed and low clouds patches developing, mainly across central scotland and north—east england. at the same

time, we have this band of clouds threatening to bring a bit of rain towards the far north—west of scotland, but for large parts of the uk, sunday will be another dry and sunny day. temperatures across scotla nd sunny day. temperatures across scotland and northern ireland are typically into the mid—20s. let's focus on the showers, because they threaten to bring some heavy and thundery downpours, but they will be very hit and miss. later in the day, we could see showers heading towards parts of sussex and surrey, but the greatest threat is more towards the south—west. that remains the case overnight as we had into monday. any remaining showers will fade away, drifting towards the south—west. again, lots of dry weather and sunshine around, hardly a cloud in the sky. the threat of showers continues to clip the far south—west of england and the channel islands,

but the detail is proving elusive. as we look ahead to the first week ofjuly, we will find little change in the weather. it should be dry and sunny for most, with still the chance of one or two storms. this is bbc world news, the headlines: tens of thousands of people are taking part in protests across the united states against president trump's immigration policies. the demonstrators are calling for migrant families split up at the us border to be reunited. eu leaders are struggling to reach an agreement on sharing responsibility for migrants. hungary has denied reports that it's among 1a member states to have indicated it would be prepared to take back asylum seekers. four young men have been killed after two cars crashed in leeds in the early hours of this morning. police are appealing for information. and uruguay are off to the quarter—finals at the football world cup, having beaten portugal in the knockout phase. uruguay‘s striker edinson cavani scored twice, while portugal could only manage a single goal.