this is bbc news, the headlines: london has become the first city in the world to introduce an ultra low welcome to bbc news — emission zone in an effort to broadcasting to viewers improve air quality. drivers are in north america and around the globe. my name's lewis vaughanjones. polluted vehicles, the motorbikes to our top stories: lorries, coming into the centre of the city, will have to pay to enter the city, will have to pay to enter striving for cleaner air in the city the area. president trump is replacing his homeland security secretary. kirstjen nielsen says she streets. london becomes the first in the world to charge drivers of has resigned with immediate effect. polluting vehicles to use its roads. anger has been growing within the president trump announces he is white house at the failure to reduce replacing the woman in charge of his the number of migrants entering the broader policy, the secretary for us illegally across southern border. and the un backed government in homeland security kirsten nieljsen says she has resigned with immediate libya says more than 20 people have effect. the un backed libyan been killed in four days of fighting around the capital, tripoli. forces government says more than 20 people have been killed in four days of fighting around the capital, led by a warlord are trying to seize the city, in defiance of international calls for restraint. tripoli. he is the king of bollywood. sha rukh khan tells the bbc what he thinks about gender inequality in india. now on bbc news, it's the week in parliament.

welcome to bbc news. the world's first ultra low emissions zone has come into force, here in london. it's seen as one of the most radical anti—pollution policies in the world. polluting vehicles — from motorbikes to lorries — will pay a charge to drive into the centre of the city. and with air pollution in our cities such a big problem, will other countries follow? tom edwards reports. this is the clean air choir, organised by mums who support the new ultra low emissions zone. pollution is a worry. we all need to think what impact air pollution is having on our children right now, on all of us. and road transport is the major source of air pollution in london. on this map, red and yellow show the high levels of pollution near roads.

older, more polluting cars will have to pay to enter central london, with the worlds‘s first ultra low emissions zone. petrol vehicles over 1a years old and diesel vehicles over four will have to pay the charge, £12.50 every day, and it runs 21w. motorbikes and hgvs will also have to comply. and the best way to check if your vehicle is compliant is to go on the tfl vehicle checker. it'll cover the area inside the congestion charging zone, but from 2021, it'll expand to roads inside the north and south circulars, taking in thousands more vehicles. the ulez is a first step, but it's a tiny bit of london. it needs to be much, much bigger and it needs to go beyond the north and south circular. no one should be left out of the clean air zone. the mayor said his scheme was necessary. this is an issue of socialjustice.

it is unacceptable in the world's greatest city, we have children in the poorest parts of london who are suffering the worst air, who have permanently undeveloped lungs. and it's the poorest families who own the fewest cars. expanding the zone will face opposition, but supporters say tomorrow is a crucial step forward in cleaning up london's air. tom edwards, bbc news. with me is simon birkett, the founder and director of clean air in london. so give us a sense of the scale, how big a problem are these polluting vehicles in our cities? well, i think the context of this is that air pollution is the largest environmental health risk, killing about 7 million people a year. now, this ultra low emission zone entering into force today is targeting the most polluting vehicles in the most polluted place, which is a sensible approach, but london's problem is primarily diesel and that is what this is focused on. and so how effective can this be? what kind of difference to the

quality of our air here in london will this make? well, you can make the difference between london's air complying with world health 0rganisation guidelines or not, we have seen some real progress over have seen some real progress over the last year but what the mayor estimates is that this measure will reduce by about 15% the number of road links in central london which will be breaching the world health 0rganisation guidelines. and we can see, it will take a look now at this map of the area, but i am interested , map of the area, but i am interested, this is london, this is a very concentrated area right in the middle of the city. how effective will this be the other cities around the world and do you think they will have any interest in copying this? well, europe has a diesel problem. diesel has been a public health catastrophe for europe and the mayor is taking a lead here in tackling diesel pollution, so i think there's going to be a lot of interest in europe and more widely. there is a particle problem in china and india, eastern europe, but we have a diesel problem. what we

expect is that this will actually reduce concentrations of nitrogen dioxide and it has been very well supported by members of public. lots of people, well, i am sure most people obviously, would want to tackle this problem but there are those concerns at this actually can end up analysing poorer people, we can't afford to go out and buy a brand—new car. can't afford to go out and buy a brand-new car. well, i think that is afair brand-new car. well, i think that is a fair question to ask. the poorest people, of course, do not have cars, don't even havejobs people, of course, do not have cars, don't even have jobs often and i think there is an intergenerational issue here, which is that the children who are exposed to this pollution are going up with small lung size, reduced lung capacity, which of course they never get that back for the rest of their life. so by targeting this measure initially ona by targeting this measure initially on a small part of london, let's call it six or 7%, it will have collateral benefits, that is what we have seen in other cities and the mayor is going to expand this in 2021 to a much larger area, but what

we would like to see is a bigger, stronger, smarter scheme, which really covers the whole of london. is yourfinalaim to really covers the whole of london. is yourfinal aim to reduce really covers the whole of london. is your final aim to reduce the number of cars on the roads? this is a pollution measure, it is not a congestion measure. this is an important step on the path to banning diesel from london and diesel is carcinogenic, it is a very serious problem and it is an important step on the pollution path,itis important step on the pollution path, it is not a congestion measure. simon birkett, thank you very much for coming on, appreciated. thank you. president trump has announced that he is replacing his homeland security secretary kirstjen nielsen. the president thanked herfor her service, but gave no immediate reason for the change. mr trump said kevin mcaleenan would take over the job in an acting capacity. cbs correspondent errol barnett sent us an update from washington. president trump confirmed the ousting of his secretary of the department of homeland security sunday in a series of tweets and

rumours of kirstjen nielsen's ousting had percolated many times before, this time though it is serious and it seems to follow a weekend in which president trump has bolstered his positioning on immigration issues. in fact, the outgoing secretary, kirstjen nielsen, was side—by—side with president trump in calexico, california late last week as the president highlighted newly renovated border wall fencing, some two miles of it. the president also over the weekend said the us is full, its immigration system overloaded. 0ne full, its immigration system overloaded. one other thing the president has threatened to do in recent days is scrap the united states's asylum system along the southern border altogether. now, while it is unclear that will even happen, it would need congressional approval, it is part of a tougher direction for the president when it comes to immigration and border security issues. kirstjen nielsen, in fact, was grilled by the house

homeland security committee in march for a perceived poor treatment of migrant families at the border. democrats, newly emboldened with their oversight responsibility, have put a spotlight on kirstjen nielsen and her action as the secretary of the department of homeland security. present trump announcing that right now, she will be replaced by the commissioner of the customs and border protection entity, kevin mcaleenan. he becomes acting secretary of dhs. errol barnett from cbs. i'll have more on this story in a few minutes. let's get some of the day's other news. thousands of demonstrators are continuing a sit in protest outside sudan's military headquarters in khartoum, bowling foot president 0mar al—bashir to step down. protesters chanted slogans calling on the army to turn against the government. the president has been in powerfor over 30 years government. the president has been in power for over 30 years and government. the president has been in powerfor over 30 years and is wa nted in powerfor over 30 years and is wanted by the international criminal court for war crimes. more

evacuations are planned in south—western iran, where further vein is expected to worsen flood which avoided killed dozens of people. women and children are being moved from the affected areas, while men are being asked to stay behind to help with rescue efforts. 70 people have died so far because 15 provinces and hundreds of towns and cities have been inundated with floodwaters. as prime minister theresa may says there is a risk brexit will not happen unless a deal can be agreed with the opposition labor party. cross—party talks have been taking place to break the stalemate on getting an agreement to the parliament, if an extension to brexit is not approved, the uk could leave the eu next friday. the choice that lies ahead of us is either leaving the opinion with the deal or not leaving it all. now, ithink, the government thinks, we absolutely must leave the european union, we must leave the european union, we must deliver brexit. that means we

need to get a deal over the line, and that is why we have been looking for new ways, new approach to find an agreement in parliament, and that means an agreement in parliament, and that mea ns cross— party an agreement in parliament, and that means cross—party talks. an agreement in parliament, and that means cross-party talks. us secretary of state mike pompeo has called for an immediate halt to the fighting in libya between rebel forces and those of the internationally recognised government. more than 20 people are reported to have died in the clashes over the last four days and the un has called for an urgent truce, but libya has been torn by violence and instability since colonel gadhafi was deposed and killed in 2011. dozens of dishes operate there, linked either to the un backed government under the prime minister, which has struggled to assert control, or the rebel libyan national army, as it is called, led by general. since thursday, it's advanced on the capital,

tripoli. 0ur diplomatic correspondent james landale has more. this is a battle fought largely by pick—up truck. makeshift armoured vehicles jamming the routes in and out of tripoli. these belong to militias loyal to the government of national accord, that's backed by the united nations. and they're rushing to defend the capital. a government spokesman insisted they had slowed the advance of rebel forces. translation: on this day, the libyan armed forces declare the launch of the operation, volcano 0f anger, to purge all libyan cities of aggressor and illegitimate forces. these are the aggressive forces he's talking about, from the so—called libyan national army — the loose alliance of armed groups that control much of the east and south of libya — here preparing for battle at their benghazi headquarters. today, as these forces continue to head west, there were clashes south of tripoli,

particularly around the disused international airport. and there were also reports of air strikes by both sides. the un mission in libya called for a short truce to evacuate civilians, but was ignored. the government said 21 people have been killed and 27 wounded. so, why does the crisis in libya matter? well, ever since western forces helped depose colonel gaddafi in 2011, libya has been gripped by violence and political instability. the un has attempted to broker a political deal between general haftar and prime minister sarraj, but so far, it's failed, and the fear among western governments is that full—blown civil war could mean libya once again becomes a source of migration and extremism on europe's southern flank. haftar clearly believes that there's a military solution to this conflict. he believes that if he captures

tripoli, he doesn't have to negotiate politically, but this is a big gamble, and it's certainly unclear whether it's going to be successful. at the moment, it's in the balance, but it looks like it's unlikely for his forces to succeed. some countries are now acting to protect their nationals. these unverified pictures appear to show the united states evacuating some of its forces by hovercraft. eu foreign ministers will discuss the crisis in brussels tomorrow, but few expect the fighting to end soon. james landale, bbc news. commemorations are taking place in rwanda, 25 years after the genocide in which 800,000 people were killed. the president who led a rebel army that ended the fighting lit a remembrance flame at the kigali genocide memorial, where many of the victims are buried.

ferdinand 0mondi has sent this report from kigali. atime to a time to mourn and reflect. the president and parts of his family, foreign ministers of state paid their respects at the kigali genocide memorial, where over 250,000 people are buried. they then let this flame, which will stay burning for the next 100 days to mark the time it took to kill nearly 1 million people. in 1994, there was no hope, only dark as. today, light, radiates from this place. in the first seven days of morning, no ceremonies are expected, no weddings, no loud music, not even

loud cheering out football match will be countenanced. i am now taking part in the commemorative war, which is one of the events lined up for today. hundreds of citizens joining the president and taking his walk from parliament buildings to the city's main stadium. there will be a series of events, the combination of which will be an overnight vigil. many of these people lost entire families, some of them do not even know their blood relatives. it has been a long, painful and brave healing process. stay with us on bbc news, still to come. . . stay with us on bbc news, still to come... we'll hearfrom stay with us on bbc news, still to come... we'll hear from the stay with us on bbc news, still to come... we'll hearfrom the man stay with us on bbc news, still to come... we'll hear from the man who has just the longest journey come... we'll hear from the man who has just the longestjourney in electric car, through a total of 33 countries.

25 years of hatred and rage as theyjump up on the statue. this funeral became a massive demonstration of black power, a power to influence. today, it's about the promise of a bright future. a day when we hope a line can be drawn under the bloody past. i think that picasso's works were beautiful, they were intelligent, and it's a sad loss to everybody who loves art.

this is bbc world news — the latest headlines: london has become the first city in the world to charge polluting vehicles for using its roads. president trump has announced is the woman in charge of his order policy. kirstjen nielsen has said she resigned with immediate effect. let's get more on that story now. steve herman works the voice of america and joins us now from just outside washington in alexandria, virginia. why do you think she has gone? well, this really wasn't a matter of if she was going to go, it was a matter of when. essentially what happened earlier sunday here is she was summoned to the white house to meet with the president and had to meet with the president and had to give resident trump reasons for

her to stay on. she either wasn't able to do that wasn't willing to do that and according to our sources, the president asked for her resignation. if that is the sequence of events that did happen, what has let up about. tension between them and why? there has been quite a bit of tension between the two although critics would say, she was the toughest ever secretary of the department of homeland security, she wasn't tough enough for president trump and especially for the president's main policy advisor on immigration, stephen miller, who seems intent on a purge, really, of not only dhs but some of its components such as the customs and border patrol, the immigration and customs enforcement, and even the

citizen and immigration services, the last one dealing with illegal immigration. miller really wants to have a much more thorough crackdown on not only illegal immigration but legal immigration as well. from people watching from the outside of the states, surprised to hear you say that, that there was a mood that she wasn't tough enough and yet for us she wasn't tough enough and yet for us watching from the outside, the thing we probably most associate is that separation of families at the border. that will be her legacy but what happens with her resignation, for the big problem, the big headline in recent days, this surging number of migrants coming in from el salvador, guatemala and honduras. this has made the president quite incensed and nielsen can now be escape goat for that and

gives the president a bit of breathing tired. —— scapegoat. —— breathing tired. —— scapegoat. —— breathing time. especially before the election next year. what happens now? with this signal and actual change in policy? perhaps. what it definitely will change is some direction for the lightning rod for whoever is at the top. the buzz here in the beltway this evening is that rick perry, the energy secretary, is the most likely contender to be nominated by the president to succeed nielsen and that might seem like an unlikely choice but he was governor of texas and dealt with border issues quite a bit in that a border issues quite a bit in that a border state and one of the few cabinet secretaries who really hasn't been the target of much anger from the president. we will see if

that comes to past. steve herman, just outside washington. he's the bollywood star with millions of fans around the world and now shah rukh khan can also boast an honorary doctorate from the university of law in london. it's to honour his work in philanthropy. in an exclusive interview with the bbc, the star says gender inequality in india is narrowing and that he's seen a positive change in the film industry since the me too movement began. bbc asian network's shabnam mahmood reports. known as the king of bollywood, shah rukh khan is one of indian cinema's biggest stars and one of the highest—paid actors in the world. more used to receiving film awards, he's now being given an honorary doctorate for his work in philanthropy. thank you very much. genuinely, i want to live to be 100 years so that i can... now i'm 50. ..i can dedicate the next 50 years

doing something worthwhile. and, you know, when i meet people around the world, i meet some youngsters, some old people, they will turn around and they say, "you know what, yourfilms make us happy." and that is very encouraging but i want to make people happy now, personally. over the years, he's championed equality for women. so, have things changed in the industry following the "me, too" movement, which saw women standing up to sexual harassment globally? the roles of women and the kind of attitude that you have at workplace for women is changing for the positive. but i think overall, when i see some of the actresses get the kind of roles, and even salaries, which i think should be even more equal than it is right now, i think it's very heartening. however, there are some things shah rukh khan feels don't need changing, like the film censorship laws in india. you know, there are going to be issues between creative people and what they want to say,

but i would say that no filmmaker wants to disturb the sensibilities of the audience. but i don't think any law or rule is outdated, i think of course you'll have to keep on refurbishing them, and people are changing, the society is changing, but culturally, i think we are a very strong nation. and i think that needs to be respected always. the bollywood superstar has made around 80 films over the last three decades. is it time now to take up more senior roles? my next role will be as sexy as my last one. so, you want me to be a sexy father, sexy hero, whatever you want me to be. earlier — we told you about london's attempt to stop the worst polluting vehicles from being used in the city. but there is an alternative to petrol and diesel fuel. the world's longest electric car trip has just come to an end in sydney, australia. the bbc‘s tim allman has more.

when you've been on a long journey, this must be quite a sight. a convoy of electric cars crossing the sydney harbour bridge. leading the way, the blue bandit, a vehicle thatjust keeps going and going and going.|j wa nt to keeps going and going and going.|j want to do my bit to promote this technology and do something which really speaks to the imagination which is to drive from ——an electric carfrom which is to drive from ——an electric car from amsterdam to literally the other side of the world and showed that it can be done and if so, why you can't use electric vehicles every day. the scale of this trip was immense. wiebe wakker travelled 95,000 kilometres, more than twice the circumference of the earth, visiting 33 countries in a journal

you that lasted more than three yea rs. you that lasted more than three years. along the way, he relied on the kindness of strangers who offered him food, shelter, and the occasional use of an electrical socket. quite a journey, occasional use of an electrical socket. quite ajourney, quite occasional use of an electrical socket. quite a journey, quite a car. but one imagines the trip home is likely to be a lot quicker. tim allman, bbc news. great stuff. just before i go, we wa nt to great stuff. just before i go, we want to show you these pictures from pyongyang where twice as many foreign visitors have participated in the marathon in the north korean capital over the last year. it's one of the main tourist drawers in the country. just under 1000 foreign passport holders ran on sunday, compared with 450 a year ago. certainly one way to see the city. you can reach me certainly one way to see the city. you can reach me on certainly one way to see the city. you can reach me on twitter. this is

bbc news. hello there. the weekend brought some very mixed fortunes in of the weather. the many parts, it was pretty cloudy and drizzly, particularly in the north and east but there were clear skies further west. this is the scene as the sun set in barnstaple in devon. through the day on monday, still some mixed fortunes. a lot of dry and sunny weather developing but there will be some rain around, particularly in the south. a slow—moving weather front with us for the next few days. here it is on monday, draped from south—east england through parts of the midlands and wales and northern ireland. so it will stay cloudy. first thing, most of us frost free but a touch of frost the sheltered glens of scotland first thing. through the day, the week when the

front bringing cloud and showers from south—east england who to wales and wanted to showers into southern northern ireland and a lot of dry and sunny weather a few showers for the aisles of scilly and the channel islands but misty and murky around the north sea coast but after a murky morning, the mists should clear with plenty of sunshine for the likes of western scotland, northern ireland and north—west england. temperatures between ten and 17 so reasonably mild. monday night and into tuesday, this weather front sticks around in the south so more of that heavy rain, southern england, south wales as well. a frost free night and likely to see mist and fog forming and low cloud pouring in off the north sea. some of these coasts could stay murky once again. lots of sunshine developing. we have got that stubborn front in more rain along the south coast of england into south wales as well and by tuesday, things are starting to turn a little bit cooler so top temperatures

around nine or ten across the east of scotland, perhaps 13 or 14 down towards the south—west. it will turn colder tuesday night into wednesday and it's because we start to import this airfrom and it's because we start to import this air from scandinavia. and it's because we start to import this airfrom scandinavia. an easterly breeze and a drop in temperature. by the time we get to wednesday, more sunshine for most of us. wednesday, more sunshine for most of us. still but murky around these eastern coasts and just the remnants of that weather front bringing cloud towards the south—west but elsewhere a lot of dry and sunny weather, light winds to temperatures not great this time of year. many of us towards eastern coasts are stuck in single figures that if we look further ahead towards the end of the week, is looking mostly drive still rather cool the time of year with temperatures generally around 9— 13 degrees. that's it for now. by by.