welcome to bbc news, broadcasting to viewers in north america and around the globe. i'm lebo diseko. our top stories: russia's main opposition leader is arrested along with hundreds of supporters as anti—corruption protests sweep the country. we meet two young boys in a hospital in mosul as the iraqi city continues to count the cost of the fight against is. he used whatsapp then killed four people. after london's terror attack, britain says intelligence services must have access to encrypted messages. and down to earth dressing. two girls grounded by united airlines for wearing leggings. hello. thousands of russians have been taking part in anti—corruption rallies across the country

in defiance of the kremlin. the biggest protests were in the russian capital, where police say 500 people have been detained. they included the opposition leader, alexei navalny, who's called for the demonstrations. the us state department says the detention of the protestors is an affront to core democratic values. steve rosenberg reports from moscow. there were moments today when moscow resembled a battlefield. russian riot police broke up an anti—government protest, on what was a day of demonstrations across russia. in moscow, they detained more than 500 people. earlier, police had poured into the city centre, warning that the protest was illegal. still, thousands of people packed into pushkin square, to accuse the russian government of corruption. the level of corruption is too high in russia right now,

and every single citizen understands it. it's hard to live in corruption atmosphere. i have children, grandchildren, and i can't breathe in this. these people have come out to protest against government corruption, but the message which this is sending to the crowd is that fighting corruption is not a priority of the russian authorities. among those arrested, russian opposition leader alexei navalny. he says he intends to run for president next year. whether he'll be allowed to isn't clear. it was alexei navalny who had called for today's nationwide protests. people took to the streets in more than 100 towns and cities across russia, in many cases defying bans by the local authorities. these were some of the largest protests russia has seen

for several years. president putin still enjoys strong support, but he can't take that for granted. steve rosenberg, bbc news, moscow. kenneth roth is the executive director of human rights watch and hejoins me now. we saw some of director of human rights watch and he joins me now. we saw some of the protests a nd he joins me now. we saw some of the protests and tough treatment from the authorities in russia but what does it say about political dissent that this actually did go ahead? frankly if i were vladimir putin, i would be terrified, because to see this kind of outpouring of protest despite the kremlin‘s utter dominance of television, which is the main way that russians get news, shows that under the superficial appeal of putin, there's enormous discontent and of course the most difficult issue for the russian

government is corruption because there's massive corruption around putin and his cronies. you mentioned 500 arrests in moscow, which is the official figure, mentioned 500 arrests in moscow, which is the officialfigure, we mentioned 500 arrests in moscow, which is the official figure, we are getting a figure closer to 530, a local group very reliable in recording this kind of thing for many years. our people on the ground during this demonstration noted that while it was mainly peaceful, the authorities clearly had no intention of allowing it to go forward. 0stensibly the protesters were meant to be far outside the city centre, they weren't going to go along with that, so instead of a official protest, they did a public promenade in moscow and other prominent cities, waving russian flags showing their patriotism was anticorruption, and carrying little dots, alexei navalny, the opposition leader who headed this protest, showed how corrupt officials build houses for

their ducks so the little ducky became a protest symbol. is the 530 figure from moscow alone or all around the country? it is moscow alone and 0dd inflow provides that, it isa alone and 0dd inflow provides that, it is a very reliable group that reports to us in moscow. we have reports to us in moscow. we have reports of a rest in st petersburg, krasner door, dagestan, we anticipate receiving many accounts from hundreds of areas in the country. how concerned are you for the treatment of those people who have been detained ? the treatment of those people who have been detained? we are concerned about mistreatment, beatings and the like but we are concerned about trumped up charges. the last time there were major protests of this sort, 2011/2012, in the context of putin's effort to retake the presidency, there was enormous concern at that point about

electoral corruption, the sense that the election wasn't run fairly, and quite lengthy prison terms were imposed at that time. we hope that putin isn't so is scared about the protests that they go to similar lengths to put harsh prison sentences on these protests. already alexei navalny, the opposition leader, has been convicted on trumped up charges to prevent him from running in the 2018 elections, but putin is hoping for a coronation and the last thing he wants is a popular opposition figure running against him. kenneth roth, from human rights watch, we thank you. thank you. iraqi forces are intensifying their assault against so—called islamic state as they try to drive the militants out of western mosul. thousands of people have left the city in recent weeks. and there are conflicting reports about who was responsible for scores of civilian deaths in a single incident last week. the us says it's investigating but has stopped short of taking responsibility. with the city still divided between is and the iraqi army, our correspondent 0rla guerin has been to a field hospital

in the south of mosul. 11—years—old, shot in the leg. behind him, a boy of the same age, hit by a mortar. brought together in a field hospital by acts of war. uday and mohammad, children of mosul. not safe at home, not safe when they flee. the beds are filling up here. ambulances have been arriving every few minutes. most of those we've seen being brought in are children. they've been injured by air strikes and also by shelling, but the staff here tell us they've also received a lot of patients who've been shot by is snipers. it is shoot to kill. isis is not messing around. they don't want people to leave, and they don't care whether it's a child, a man or an old woman. everybody is being shot as they try to escape. people are saying it takes two isis

militants to really keep an area under control, and prevent civilians from going anywhere. they want the civilians to stay inside to remain as human shields. kusei tried to break free with his younger brother, but uday was targeted by an is sniper. this footage, filmed by hospital staff, shows the anguish of abdullah. his five—year—old granddaughter, sara, is in the body bag. is shot her through the heart. but those who escaped the battlefield are bringing accounts of other innocent civilians. allegedly killed by their liberators. victims of bombing raids, by iraqi and coalitionjets. akram mahmood insists that his brother was one of them. he says hamad, on the right,

was a truck driver, and not a militant, and his guide all his life. hamad died on his own doorstep, he tells me, when an air strike hit his car. "five men were killed with my brother," says akram. "i bury them with my own hands." "the slogan from the authorities was ‘we're coming to rescue you, to free you from is‘." "in reality, my brother has been killed, and lots of families have been destroyed." and in the camp nearby, the broken and the displaced reach out in desperation. after years of is tyranny, and months of warfare, one more hardship for the people of mosul. 0rla guerin, bbc news, northern iraq.

britain's home secretary amber rudd has demanded access to encrypted messaging services in terrorism cases. she made the comments to the bbc after it was reported that the man who killed four people in westminster last week was on whatsapp moments before he carried out the attack. 0ur security correspondent gordon corera reports. are technology companies doing enough to combat terrorism? that was the question raised today, especially when it comes to encrypted communications. khalid masood was active on the messaging system whatsapp just before the attack. the company, part of facebook, says it is helping the authorities. but they can't pass on content of the messages, since even they don't have access to encrypted data. today, the home secretary said it was not good enough. we must make sure that organisations like whatsapp, and there are plenty of others like that, do not provide a secret place for terrorists to communicate

with each other. it used to be that people would steam open envelopes orjust listen in on phones when they wanted to find out what people were doing legally, through warra ntry, but we need to make sure that our intelligence services have the ability to get into situations like encrypted whatsapp. police say they are worried that technology companies are designing systems that won't allow for traditional surveillance. at the heart of this is a stark inconsistency between the ability of police to lawfully intercept telephone calls, but not when those messages are exchanged via social media messaging boards, for example. that's an inconsistency in society, it surely is, we need a solution through appropriate legislation. but encryption is getting more popular since it protects ordinary people's data from hackers and criminals, helping preserve privacy. that makes some nervous about giving the state new powers to restrict it. they have huge powers of investigation already and there is a question of always balancing the right to know,

the need to know, with the right to privacy. phones, as well as messages, can be encrypted. after a terrorist attack in san bernardino in america, there was a row between apple and the fbi, who wanted a phone unlocked. we don't know for sure in this case of police could access khalid masood's phone yet. it might help to answer whether he really did act alone, as police think. encryption is an issue that law enforcement and government have long worried about. in the coming week, the technology companies will be meeting with officials here at the home office a previously scheduled meeting. encryption, though, is one of the issues where the government want tech companies to do more. the wealth of extremist content hosted on websites isa high priority for the government,

which fears its radicalising effect. it wants the companies to find the material themselves and take it down, rather than wait for it to be reported to them. there's no sign of new legislation in the wake of this attack. police have just got new powers over data, but authorities may be hoping they can put enough pressure on technology companies to change their behaviour. gordon corera, bbc news. the australian government's inquiry into child sexual abuse allegations in the country over the last 35 years is starting its final public hearing in sydney. more than 1,200 witnesses have given evidence over the course of the last four years, including many former child migrants sent to australia from britain in the ‘50s and ‘60s in the hope of a better life. the commission has received information on more

than 4,000 institutions and expects to have held more than 7000 private sessions by the time it completes its work. 0ur correspondent hywel griffith is in sydney. this was triggered after a police investigation into abuse alleged to have occurred a couple of hours north of sydney in newcastle, but very quickly it emerged it wasn't just individual cases of abuse, there was an element of institutional abuse happening and that meant the government decided there was a need to look across the border, notjust there was a need to look across the border, not just abuse there was a need to look across the border, notjust abuse within religious institutions, the catholic church, anglican church, schools, it widened the scope and this is unprecedented. public and private schools, orphanages, churches, sporting institutions, that was a

key one with difficult questions to ask and what we have heard from the chairperson at the start of the session today that while this looked at over 4000 institutions were abuse was alleged, there were common failures they have come up with —— were. the scale is unprecedented, what has been the public response and also from the institutions involved in this enquiry? many of the institutions have been willing to ta ke the institutions have been willing to take part. the catholic church very recently in a few sessions agreed to disclose the number of allegations. we heard more than 4000 allegations. we heard more than 4000 allegations just within the church. there have been some people, especially victims, who were angered one individual institution, a school perhaps, hadn't been looked at in more detail. but we heard today it was impossible to look at every institution involved in minute

detail, they thought there was more to be gained by taking this universal approach. the two things they found common across them was they found common across them was the failure to report mandatory reporting. if abuse occurs there isn't always a duty of care on someone isn't always a duty of care on someone to give that information to the police or the authorities, and also the failure to compensate abuse victims, survivors of abuse, who spent decades anguishing, many suffering physical and mental health problems, finally now some move to giving them financial restitution and compensation, well, we understand, come from the final report for this commission. hywel griffith, thank you for bringing us stay with us on bbc news, still to come: should leggings get a pass? the twitter storm over spandex something else here. let there be no more war or bloodshed between arabs and israelis.

so proud of both of you. with great regret the committee have decided that south africa be excluded from the 1970 competition. streaking across the sky, the white hot wreckage from mir drew gasps from onlookers in fiji. this is bbc news.

the latest headlines: russia's main opposition leader has been arrested, along with hundreds of supporters, as anti—corru ption protests swept the country. mosul‘s civilian population is continuing to pay a high price as iraqi forces step up the fight against so—called islamic state. gennady rudkevich is assistant professor in international relations at georgia college, and joins me now. thank you forjoining us. just give us some thank you forjoining us. just give us some idea how unusual this type of protest is in russia, and particularly for them to be so widespread. well, these are the largest protests in russia since the 2012 protest for the legislative elections there at that time, and it is particularly unusual to have protests outside of moscow and st

petersburg. the opposition leaders claiming they were protests in 99 different cities across russia, including an the caucasus and the eastern coast, and the ural, and it is very unusual for them to be that widespread. i mean, the authority say this is illegal, they hadn't given permission for them and they are given permission for them and they a re really given permission for them and they are really taking this as a provocation. and we saw that in their response, didn't we? absolutely. the authorities did not sanction these protests. traditionally they do not sanction protest. a lot of the time they get out of control, and there was that possibility here. so the protests we re possibility here. so the protests were indeed illegal, and the russian government cracked down very quickly. what does this say about political dissent in russia, the fa ct political dissent in russia, the fact that they even took place at all? well, russia allows a certain degree of political dissent. people are allowed tojoin

degree of political dissent. people are allowed to join opposition political parties. some of those parties are even allowed run for office, though not alexei navalny‘s party. people have a certain degree of freedom of association and freedom of speech, but want to go what the leadership of russia thinks is over the line, that is when they step in, with heavily armed police. these protests were about corruption and one of the demands of protesters is that they wanted the prime minister to step down. how likely are they to achieve this, and is this really what they wanted, or is this really what they wanted, or is this about something more? there is a long—term problem with corruption in russia, and most russian people realise that. what we have seen todayis realise that. what we have seen today is that people didn't think that dmitry medvedev was corrupt. he was kind of scene as a liberal moderniser, and therefore people we re moderniser, and therefore people were particularly angry that he allegedly was involved in all kinds of corrupt activities. in terms of anything happening to him, it is highly unlikely that anything will happen. ijust

highly unlikely that anything will happen. i just saw a highly unlikely that anything will happen. ijust saw a report highly unlikely that anything will happen. i just saw a report where the russian legislature said that it is up to the presidential administration to investigate any kind of wrongdoing, and it is unlikely that president putin will give in to these kinds of demands as prime minister. —— demands regarding his prime minister. the bangladeshi army says troops have shot dead two suspected islamist militants holed up in an apartment block since friday. a senior military official said more militants could still be in the five—storey building, which is in the north—eastern city of sylhet. at least six people were killed on saturday, in two bombings close to the block. akbar hossain is in sylhet. this is believed to be the biggest anti—terror raid in bangladesh in recent years. army commanders are fighting against islamist militants. security officials say that they were on the lookout for this militant hideout for the last few months.

six people, including two police officers, were killed in last night's explosion, targeting security forces. the so—called islamic state said it carried out the attack. the whole area has been cordoned off to avoid further casualties. translation: we couldn't sleep for the last two nights, as powerful explosions rocked the whole area. our children are very scared. we cannot move out of our house. we never thought that we were living beside a militant den. i am standing a few hundred away from the house where suspected islamic militants are holding up a strong position, for the last 72 hours. bangladesh's security forces, including army commanders, have joined the anti—terror operation. they are urging the militants to surrender, but the militants are responding with sustained gunshots and explosions. bangladesh is facing the threat of islamist militancy for the last few years.

more than 35 islamist militants have been killed in anti—terror operations conducted by the security forces. but this time, this is not going to be an easy victory for the security forces. army commanders have rescued 78 civilians from the house, but the operation is not over yet. translation: two militants are killed. we think there are more inside the building. we will continue our operations. many security analysts believe that bangladeshi islamist militants have a strong connection with the so—called islamic state. but the bangladesh government says they are all home—grown. if it is proved that islamist extremists are responsible for the recent handful of suicide bombings, then it marks a new phase in bangladesh's fight against militancy. united airlines has faced a barrage of criticism after it barred two teenage girls from boarding a flight for wearing leggings.

a third girl, aged ten, also wearing leggings, was only allowed to board after she put on a dress that was in her backpack. a female member of staff told the girls that they could not proceed while wearing spandex, which the airline deems inappropriate. caroline davies reports. it is the online argument that has been called leggings gate, and this was the tweet that sparked it. shannon watts, a campaigner in the united states, sought to make girls banned from united air lines flight because they were wearing leggings. she tweeted the incident to the airline —— united airlines. this was their response. and it led to a tirade, with some celebrities joining and it led to a tirade, with some celebritiesjoining in. and it led to a tirade, with some celebrities joining in. comedian sarah silverman said she would not fly on united model chrissie keegan

said she would try wearing only jeans and a scarf next time and act keegan allen called a petty. united clarified their position in the later tweet, explaining they were passed riders, a ticket for eligible dependents which does have a dress code, and that excludes wearing lycra. but that hasn't quietened the twitter storm entirely, and shannon says she still thinks the policy is sexist. and, before we go, we wanted to show you these pictures of four white tigers born at a zoo in central poland. the cubs, two females and two males, were born five days ago to their mum, safran. and, as you can see, they have all been taking it easy. white tigers are extremely rare, and owe their appearance to a recessive gene. this private safari zoo specialises in breeding white animals, rarely found in the wild. hello again.

it is not often that we get the best of the weather over the weekend, but that seems to be the case this time round. on sunday, we had a temperature of 20 degrees in highland scotland, aviemore, for example. but, for many of us on sunday, the skies were not quite as blue. we had some high cloud contaminating things. now, there is some cloud coming up from nearby france, but we are also filling in the north sea with low cloud, and it is that that is heading our way right now, particularly into parts of northern england, down into the midlands and wales. still got the high pressure in charge at the moment, and it is going to be pretty chilly, despite a bit more cloud. temperatures a bit lower across the southern half of the uk, where that stronger wind has now finally relented. any frost in the north will tend to lift fairly quickly, i think, across mainland scotland. one or two mist and fog patches, perhaps, but the sunshine coming through. a little bit more cloud by morning, perhaps, in northern ireland, and a change for england and wales, where we will start off a bit grey, misty and murky across the likes

of north—east england, perhaps into the midlands and into east wales. this is the main area of low cloud, spilling in from the north sea. south of that, the odd patch of mist or low cloud, but some sunshine as well, and most of us will see the sunshine burning through that cloud. it does take a while, though, where it has moved in off the north sea, and the odd patch may linger through into the afternoon, especially across the north—east of england and south—east scotland. so here, that low cloud will peg back the temperatures. 0therwise, with some sunshine, the numbers are similar to what we had on sunday. highest temperatures again in highland scotland, and this time in the south—east of england, where we don't have that cold, easterly wind. over the week ahead, though, we are going to find more cloud arriving, and the chance of some rain, especially in the north and west of the uk. but southerly winds, mind you, so still decent temperatures by day, and it won't be as cold at night, either. but the high pressure is shrinking away into the near continent. instead there is a massive area of low pressure out in the atlantic, and that will dominate our weather, to bring with it showers or longer

spells of rain. and the first signs of rain really arrive on tuesday. a bit of a dull start, ahead of the showers moving into the south—west, wales, northern ireland, later the midlands, northern england, and eventually southern scotland. north—east scotland still rather grey and cool, with the onshore breeze. maybe one or two showers in the south—east and east anglia, but some sunshine here as well, and this is where we will see the highest temperatures, and many places will be dry. and it could be that way again on wednesday. weather fronts coming in around that big area of low pressure threaten to bring more organised rain into the western side of the uk, but ahead of it, still largely dry and warm in the south—east. the latest headlines from bbc news, i'm lebo diseko. thousands of russians have taken part in anti—corruption rallies across the country in defiance of the authorities. the biggest protests were in moscow, where activists say eight 100 people the biggest protests were in moscow, where activists say 800 people were detained, including the opposition leader

alexei navalny. mosul‘s civilian population is continuing to pay a high price as iraqi forces step up the fight against so—called islamic state. thousands of people have left the city in recent weeks and there are conflicting reports about who was responsible for scores of civilian deaths in a single incident last week. britain's home secretary amber rudd has demanded access to encrypted messaging services in terrorism cases. she made the comments to the bbc after it was reported that the man who killed four people in london last week was on whatsapp moments before he carried out the attack. now on bbc news, the week in parliament.