championships, to be held injuly 2020. this is bbc world news today. i'm samantha simmonds. our top stories... iran hoist its flag on the masthead of the captured uk tanker, despite calls to defuse tensions. more violent clashes in hong kong — police fire tear gas at protesters during another huge pro—democracy rally the riot police have come into clearer people out of the area. this is what's happening every weekend in hong kong. exit polls in ukraine suggest that president zelensky‘s party is well ahead of his rivals after a snap election — but will he get an overall majority? britain's finance minister philip hammond says he'll resign if boris johnson becomes prime minister next week.

and coming up, ireland celebrates as local hero shane lowry wins the british open at portrush. hello and welcome to world news today. britain's defence minister has branded the seizing of a british—flagged oil tanker by iran as a ‘hostile act'. his comments came as a recording emerged of radio exchanges between a royal navy warship and iran's revolutionary guard, moments before the tanker — the stena impero — was seized in the strait of hormuz on friday. both sides have called for de—escalation of the situation. but iranian state television also been showing the tanker with the iranian flag flying from its masthead. paul adams reports. iranian revolutionary guards boarding the stena impero

on friday afternoon, carrying out a two—week—old threat to seize a british vessel. iran said the tanker broke the law, the ship's owners and the british government say this simply isn't true. earlier, tense exchanges as a british warship, hms montrose, attempted to stop the ship being taken. but the revolutionary guards were determined. hms montrose was too far away to make a difference. the stena impero was sailing through the strait of hormuz

in omani waters when it was boarded. it was forced to turn north towards the iranian coast. translation: we followed the ship every second, every minute, and the tanker never left international waters. we understand that the crew are in relatively good condition but it's a stressed situation for everyone. a larger british warship, hms duncan, is on its way to the gulf to replace hms montrose, the government facing criticism for failing to protect british shipping. if we want to continue playing a role on the international stage, bearing in mind that threats are changing, all happening just beneath the threshold of all—out war, then we must invest more in our defence, including our royal navy. iranian television has broadcast these pictures showing the tanker now flying an iranian flag. iranian tv says the investigation could take a month or more. officials here in whitehall have spent the weekend trying to figure out britain's response. the foreign secretary, jeremy hunt, is due to make a statement tomorrow. i understand he will say that

britain is working with other countries to improve maritime security in the gulf and he will emphasise the kind of international, diplomatic response britain is trying to achieve. paul adams, bbc news, at the foreign office. police in hong kong have fired tear gas to disperse protestors after another mass protest at the way the territory is being run. tens of thousands of protestors have been on the streets, the latest in a series of demonstrations that have been going on for two months. stephen mcdonell‘s report contains some flashing images. the days of only peaceful protest now seem a thing of the past for hong kong. many pro—democracy agitators, especially amongst student groups, have decided that escalation is the way forward. and in a clear provocation, they attacked beijing's most visible presence in the city. this is the chinese central government headquarters and it has

been graffitied by protesters, including here referring to president xijinping as a dog. it was always going to call for a tough response, and this is the response. riot police have come in to clear people out of this area. and this is now what's happening every weekend in hong kong. the threat of injury or arrest is not deterring demonstrators, and the police are not backing down either. earlier, a large, peaceful march made its way through the streets. what was a movement opposing extradition to mainland chinese courts has morphed into a broader defence of hong kong's freedoms and a push for democracy. we need to stand for what we want and keep going on. because we are hong kongers, we love our homes, so we need to fight. every major protest here seems to be leading to greater levels of violence, and it's hard to see an end for this city's deteriorating political crisis. stephen mcdonnell,

bbc news, hong kong. exit polls in ukraine suggest that president volodymyr zelensky‘s party will win the largest number of seats in parliament. but it's estimated his party has secured 44% of the votes cast, which may be short of an overall majority. mr zelensky announced the snap election, although his new servant of the people party had no representation in parliament at that time. the exit polls also suggest pro—russian opposition platform and thatjust five parties overall reached the 5% national threashold needed to secure any seats in parliament. our correspondent steve rosenberg has the latest. there were celebrations here at the headquarters of president zelensky‘s party, servant of the people, when the exit poll results were announced. that's because this party is way ahead of the rest.

it's expected to get 44% of the party vote, well ahead, more than 30 percentage points ahead of its nearest rival, the opposition platform for life, a pro—moscow party. one thing is certain. there are going to be plenty of new faces in this new ukrainian parliament. none of the candidates for this party have been an mp before. why is that significant? i asked that question to the youngest man on the party list, the youngest candidate, who is just 23 years old. ukrainians aren't willing to trust the old elites. they have lied and tricked them so many times in the past. they want to give us a chance to change the country for the better. we are coming from different walks of life but we have expertise in many different areas and we are going to put it together to transform the country. we don't know the final make—up of the parliament but president zelensky is going to hope

this level of support for his party will help him to push through the kind of reforms he says he wants to carry out in ukraine, saying he wants to fight corruption and modernise the party. there are sceptics and he has critics who believe he is in the pocket of a powerful tycoon igor kolomoisky. both the president and the businessman deny that. for now it seems that ukrainians are keeping faith with the showman turned president and hoping that he and his party will change ukraine for the better. we can now get the thoughts of peter zalmayev, director of eurasia democracy initiative, whojoins me from kiev. thanks forjoining us. let‘ up . thanks forjoining us. let's pick up on the point that steve ended with. a lot of hopes riding on the new president, and whether or not he gets a majority or will have to form a coalition. he has a lot of work to do to turn the country allow around. can he do it? that's the $1 million

question, volodymyr zelensky is a dark horse, not a politician and the people around him are either not politicians, or have been tainted with association with the country's oligarchs. what we have is a lot of promises but mr zelensky has made big promises including to end the war, to fight corruption, and go after corru pt war, to fight corruption, and go after corrupt politicians. a lot of them... the war in the east of ukraine is in the hands of vladimir putin. the real danger is the case that zelensky cannot deliver quickly on the promises that he is made. he'll be gravitating further and further towards the populist stance he's taken, and to go from the politics of vendor to in a country that remains very much on united and ata that remains very much on united and at a crossroads. he has a lot on his

plate, he is yet to declare victory, oi’ plate, he is yet to declare victory, or look towards a coalition. what would a coalition that he is looking for look like? the likeliest choice would be mr vakarchuk, a rock star, who hails from the west, who has star power and is the least toxic of the parties that have entered the election but i'm not sure that mr vakarchuk election but i'm not sure that mr va karchuk is election but i'm not sure that mr vakarchuk is going to want to join mr zelensky. he is ideological in closer to the former president poroshenko. mr zelensky hasn't shown much enthusiasm about ukraine's pro—european integration although he has made the right noises and said the right things. depending on the

make—up the parliament, it may look like a majority, around 50%, are made up of these new parties. doesn't that give him more power to enact change? can it allow him to introduce sweeping reforms that he's promised? indeed but like in every country's politics, a democracy like ukraine, things can change quickly. he has to hit the ground running, he has to do things quickly. if he doesn't then he's surrounded by two opposed political parties. on the one hand he has the pro—russian party, whose leader is a close confident of the russian president. and mr poroshenko remains a strong politician, pro—europe. you have a

situation where zelensky will be torn between these two opposing camps and they are waiting for their chance to snap at zelensky in case he fails. a lot riding on what comes in the next few months. . thanks for joining us. let's take a look at some of the other stories making the news. the japanese prime minister, shinzo abe, has welcomed exit polls suggesting his centre—right coalition will keep control of the upper house of parliament after sunday's election. mr abe said voters wanted mps to debate his plans to amend japan's pacifist constitution. the migra nt—rescue group sos mediteranee says it is resuming its operations off the coast of libya. it stopped seven months ago after one of its ships was denied permission to dock in italy. egypt has criticised british airways for its decision to suspend its flights to cairo for a week on security grounds. the airline said its service was halted as part of a routine security procedure.

the uk will have a new prime minister later this week — with borisjohnson expected to take up the position. but the chancellor of the exchequer, philip hammond, says he'll resign if that happens. mr hammond says he doesn't agree with borisjohnson over brexit and he thinks it's unlikely britain will get a deal agreed with the eu — by the current leaving date of october 31st. here's our uk political correspondent, chris mason. philip hammond has been chancellor for the last three years, appointed by theresa may injuly 2016. this was him packing up for the weekend. on wednesday, he'll pack up for good. assuming that borisjohnson becomes the next prime minister, i understand that his conditions for serving in his government would include accepting a no—deal exit on the 31st of october. that is not something i could ever sign up to. it's very important that a prime minister is able to have a chancellor who is closely aligned with him in terms of policy. and i therefore intend to resign

to theresa may before she goes to the palace to tender her own resignation on wednesday. the result of the leadership race will be announced on tuesday, but it's notjust the chancellor preparing for prime ministerjohnson. others are ready to resign, too. and so, the new leader will face old problems — a divided party and this, the border between northern ireland and the republic, and the existing insurance policy, the backstop, to keep it as it is under all circumstances. mrjohnson and plenty of mps hate it. the eu and ireland says it's essential. if the approach of the new british prime minister is that they're going to tear up the withdrawal agreement, then i think we're in trouble. i think we're all in trouble, quite frankly, because that's a little bit like saying, "either give me what i want or i'm going to burn the house down for everybody". borisjohnson is willing to contemplate a no—deal brexit, a prospect that frightens ireland

but excites some of his supporters, not least because they hope preparing properly for it means there's a better chance of a better deal. the deal, as it stands right now, is dead, and there's no point in trying to fiddle or twiddle it. the reality is there are huge elements in it which simply are inoperable in the uk. the eu is a masterat hard—nosed negotiation. as we now know. and i think we got taken for a ride because we weren't. downing street will be rather busier than this come wednesday afternoon, as one prime minister leaves and another arrives. this is the week where everything changes and rather a lot stays the same. chris mason, bbc news. stay with us on bbc world news, still to come: firefighters battle raging wildfires sweeping raging wildfires sweeping across central portugal. coming down the ladder now.

it's one small step for man, one giant leap for mankind. a catastrophic engine fire is being blamed tonight for the first crash in the 30—year history of concorde, the world's only supersonic airliner. it was one of the most vivid symbols of the violence and hatred that tore apart the state of yugoslavia. but now, a decade later, it's been painstakingly rebuilt, and opens again today. there's been a 50% decrease in sperm quantity and an increase in malfunctioning sperm, unable to swim properly. thousands of households across the country are suspiciously quiet this lunchtime, as children bury their noses in the final installment of harry potter.

this is bbc world news today. the latest headlines. iran hoist its flag on the masthead of the captured uk tanker, despite calls to defuse tensions. there have been more violent clashes in hong kong — police fire tear gas at protesters during another huge pro—democracy rally. wildfires are raging in central portugal, with strong winds spreading flames in the castelo branco region. it's close to an area of the country where wildfires two years ago killed more than 60 people. rhodri davies reports. summers bring combustible forests in portugal, and wildfires can make the daytime sky look like night. hundreds of firefighters are battling these fires across the country's centre.

but others are having to take up the fight themselves. amid the groups of the brave, some asked why they were confronting these annual infernos. translation: there must be something that can be done. i do not know if there is anyone interested in doing it. but those in power should see that all this is against people's interests. firefighters managed to get two fires under control, but only after several people were injured. by fire that had started on saturday in the mountainous castelo branco region north of lisbon. they spread elsewhere, abetted by high temperatures and atlantic winds. police say they've arrested a 55—year—old man on suspicion of starting a fire. another year, another wildfire, another arrest, leaving portuguese wishing their beautiful summers were less cruel. rhodri davies, bbc news. the uk has committed to a target of net zero greenhouse gas emissions by 2050, but what steps can be

taken to achieve that? a team of architects in london think they have part of the answer, which involves giving buildings a colourful makeover. dougal shaw reports. here in east london, a team of architects and scientists are busy developing technology they think could change the look of cities everywhere and help save the planet. it involves these, biocurtains. they can be fitted to the outside of any building. they are filled with algae. taken from their natural home, they are treated in a lab. why do this? well, algae are very naturally efficient at turning carbon dioxide into oxygen. when the sun shines on the curtains, polluted city air is drawn in from the bottom of the curtain. the single—celled algae absorb the carbon, and oxygen is released at the top.

the inventors say it's an effective way to cut down greenhouse gas emissions in cities. this is an effective and extremely efficient way to introduce photosynthesis within the built environment. in terms of air—cleaning power, he reckons one of these curtains is equivalent to a mature tree. so far, the biocurtains have been installed at the customs and revenue house in dublin and most recently the house of nobility palace in helsinki. in theory, any building could be fitted with these biocurtains, but realistically, is that going to happen? the uk is aiming at becoming carbon neutral by 2050. london has garden and needs a plan. we have to reduce the amount of carbon that we need, but also actively absorb. there are some drawbacks to these biocurtains compared to trees. as the algae grow, they have to be harvested on a regular basis, which requires maintenance. this is one reason the curtains work out more expensive than trees, though they take up less space. however, the inventors are convinced this is a smart solution that harnesses a material that already exists all around us. dougal shaw, bbc news. sarah has all the sport.

hello and thanks forjoining us. we start with golf, and shane lowry has held his nerve to win the open at royal portrush. amid jubilant scenes, the irishman beat his nearest challenger, england's tommy fleetwood, by six shots to lift the claretjug for the first time. it was just incredible to walk down, to walk down the 18th, the crowd going wild, it was like something that, you know, ijust i couldn't believe it was happening to me. and ijust went out there and tried to give my best, and look, lam here now, major champion. i can't believe i'm saying that, to be honest. i think the people around me really believed that i could, which helps me an awful lot. i do remember a lot of times in the past, when i am down on myself, and i suppose when you have the people around you who really believe in you, it helps you an awful lot. new zealand have won

the netball world cup after beating australia by just one goal in liverpool. the final was tense throughout and came down to the dying seconds as the silver ferns prevailed 52—51. it was new zealand's fifth world title but their first since 2003. australia had won the previous three. england beat south africa to win the bronze medal. it's a bit of a dream really. it's a bit of a dream really. i'm it's a bit of a dream really. i'm really proud, i'm not sure i have words to describe how i'm feeling, but immense pride. everyone has done a lot of work for us to get to this space. i don't know what to say. amazing. britain's simon yates has won stage 15 of the tour de france as the reigning champion geraint thomas gained time on the overall leader julian alaphilippe.

it is yates' second victory of the 2019 tour, finishing 33 seconds ahead of thibaut pinot in second. alaphilipe retains the yellow jersey, losing 32 seconds to thomas as the frenchman clearly struggled up the climb. thomas lost time on saturday, but a better performance means he remains in the hunt to retain his tour de france title. so here's how the standings look now. british swimmer adam peaty has become the first man to swim 100 metres breaststroke in under 57 seconds, breaking his own world record with a time of 56.88 seconds. the 24—year—old has dominated both the 100 metres and 50 metres in recent years, setting the 1a best times in the 100 metres breaststroke. his new record came in the semi—finals of the world championships in south korea.

i stayed to the ground, using my support team and my team—mates to my advantage. coming to the finest form as an athlete i've ever been in. trying to get back to the sport from around the edges. i'm getting into my manhood now, i'm not an 18—year—old anymore, splashing and dashing. this is how i set my legacy and this is how i to do it. australia have retained the women's ashes as the final day of the test match petered out into a draw. england avoided the follow—on and declared on 275—9, but they couldn't bowl australia out. henry moran was watching in taunton. it always seemed likely on the fourth day that the draw would be the outcome of the game. a lot of time was lost on the second day and a result seemed implausible. england passing the follow—on target and declared, and aimed for early wickets that would get a result. a

couple of wickets falling in one over which picked interest as laura marsh got the openers healy and haynes. but liz perry got another half—ce ntu ry haynes. but liz perry got another half—century as australia batted into the evening and got australia the draw they needed to retain the ashes. 3t20 events follow this match and if england win then they will never the series on points but it won't be enough to reclaim the trophy, australia have guaranteed that they'll be taking the trophy back to australia. and finally, after plenty of speculation that gareth bale is on his way out of real madrid, manager zinedine zidane has now confirmed the striker is very close to leaving. bale, who has three years left on his real contract, was left out of their pre—season game at bayern munich in the united states. zidane was asked about the player's future after the match. translation: he wasn't called up because i believe the club is

arranging his exit and that's why he didn't play. we'll see in a few days what will happen. it's nothing personal. there comes a time when these things happened and it's what must be done. i make the decision and we need a change. we'll see what happens. that's all the sport for now. thanks for being with us. you've probably heard we've got a heat wave coming up this week and it will be the case that temperatures and humidity are going to rise into the middle part of the week. we've got some rain in the north—west over the next 2a hours. later we'll see some thundery downpours.

paris may see up to 41 degrees, which would be the highest temperature ever recorded in the french capital. today we had a frontal system from the atlantic bringing quite a lot of cloud. a fairamount of bringing quite a lot of cloud. a fair amount of cloud and rain especially over north—western parts of the uk. northern ireland, northwest angled at much of scotland, the rain continuing. gusts of 40, scotland, the rain continuing. gusts of 1:0, 50 mph. in scotland, the rain continuing. gusts of 40, 50 mph. in england and wales it should stay dry overnight. quite mild and humid with temperatures in the mid—teens. monday will be improving especially for northern ireland and northern england after the rain on sunday and overnight. we keep the heavy rain over the western half of scotland so they could be some localised flooding. for the rest of the uk the sunshine is going to appearand it rest of the uk the sunshine is going to appear and it will be significantly hotter. wind from the south. to the south—east, 29 or 30 degrees. further north, 25. a bit

cooler over the northern part of scotla nd cooler over the northern part of scotland where you've got cloud and rain. tuesday, looking at dry, hot weather. just the far north of scotla nd weather. just the far north of scotland seeing showers. in the sunshine it will feel very hot. temperatures up to 33, 30 4 degrees. in scotland and northern ireland, the mid to high 20s. hot on tuesday. also hot overnight. white mpm, if you're going to bed, temperatures in the high 20s —— by 10pm. feeling quite muggy on tuesday night. keeping the heat tuesday into wednesday but there's a chance of heavy and fund research is, especially in the north and west.

this is bbc world news the headlines. iran has hoisted its flag on the masthead of a british oil tanker it seized in the straits of hormuz. but despite the move, tehran says "prudence and foresight" are required to defuse tension between the two countries. riot police have fired tear gas and rubber bullets at protesters in hong kong following another pro—democracy rally. officers charged demonstrators who refused to disperse. the protests began over a controversial extradition bill.. exit polls in ukraine suggest that president volodymyr zelensky‘s party will win the largest number of seats in parliament, with an estimated 44% of the votes.