this is bbc news, broadcasting to viewers in the uk and around the world. the headlines. the police headquarters in the pakistani city of karachi has come under attack, with gunfire and multiple explosions heard. several people have been killed. five former police officers in the us plead not guilty to murdering the young black man, tyre nichols, last month. his mother demands justice. i know my son is gone. i want each and every one of those officers to look me in the face. if they haven't done that yet, they couldn't even do that today.

the ukrainian president urges world leaders gathered for a security conference in munich to speed up their support for his country. there is no alternative spirit because it is the spirit there is no alternative to spirit because it is the spirit that the life depends on. delay has always been and still is a mistake. hello and welcome. the authorities in the pakistani city of karachi say they've retaken control of the police headquarters, hours after it was stormed by militants. there are reports that seven people were killed when a taliban suicide squad stormed the compound.

the assault on the five—storey building began with a grenade attack. it was followed by a series of blasts and a fierce gun battle. pakistani officials say three militants were killed, 15 people were injured. huge explosions were heard. take a look at this. the building houses karachi's most senior police officials, on a strategic thoroughfare near naval offices and the city's army command. the pakistani taliban said they carried out the attack. these pictures from the scene were sent in from our bbc cameraman. as you can see, there's a heavy police presence the militant group, pakistan taliban, say they're responsible for the attack. hunain ameen is a reporter and writer for pakistani tv news channel ary news joining us from karachi. he was at the scene of the attack until police cleared the area. thanks forjoining us. tell us what you saw. thanks for “oining us. tell us what ou saw. . ., ., ~

you saw. thanks for having me. after an hour and — you saw. thanks for having me. after an hour and a — you saw. thanks for having me. after an hour and a half— you saw. thanks for having me. after an hour and a half since _ you saw. thanks for having me. after an hour and a half since this - you saw. thanks for having me. after an hour and a half since this attack. an hour and a half since this attack started, i got there as a local journalist and was reporting from... right across the building. the scene of crime. i saw at least two explosions there, and there was an area cordoned off as far as the eye could see. that could be launched from the building, because apparently, it was ace the 5—story building and terrorists were on the top floor. the explosion that i

heard were apparently, one of them was a person, a terrorist.— was a person, a terrorist. we're lookin: was a person, a terrorist. we're looking at — was a person, a terrorist. we're looking at some _ was a person, a terrorist. we're looking at some pictures - was a person, a terrorist. we're looking at some pictures of- was a person, a terrorist. we're looking at some pictures of the | looking at some pictures of the building where the attack took place. i understand that you got a bit closer to the scene.— place. i understand that you got a bit closer to the scene. yes, i was actually right across _ bit closer to the scene. yes, i was actually right across where - bit closer to the scene. yes, i was actually right across where it - actually right across where it was happening. the other media person said they got there earlier than i was. they had a better visual, but they were at a safe distance, and so was i, but from a different angle. i was i, but from a different angle. i was on top of a pedestrian village thatis was on top of a pedestrian village that is adjacent to the building, so i had an edge on visual there. hunain, tell me more about the location where this is located. yes.

location where this is located. yes, in every sense _ location where this is located. yes, in every sense of— location where this is located. yes, in every sense of the _ location where this is located. yes, in every sense of the way, - location where this is located. yes, in every sense of the way, it - location where this is located. 1&1: in every sense of the way, it was a very sensitive location. it is a smack in the middle of... it has so many important aspects to look at. first, it connects at least three districts of karachi, so is as important as a highway that two cities. obviously, it was cordoned off. secondly, there are so many installations there. there are so many offices there are sensitive and all sins of the ways. thirdly, it is close to the hotel where pso are saying. psl aid is happening. it is

hardly in the middle of a full kilometre dive. ultimately, karachi is holding matches. fix, kilometre dive. ultimately, karachi is holding matches.— kilometre dive. ultimately, karachi is holding matches. a very sensitive lace. is holding matches. a very sensitive place. presumably _ is holding matches. a very sensitive place. presumably with _ is holding matches. a very sensitive place. presumably with a _ is holding matches. a very sensitive place. presumably with a lot - is holding matches. a very sensitive place. presumably with a lot of - place. presumably with a lot of security around. how do you think the suicide squad could bypass security and get to this location? well, i cannot comment on that because sensitive security operations can tell better. but in terms of mobility, it is open for all. the karachi police office is open for all. it's an open door office where you can walk it easily. they have verified the place of the garden which the alleged terrorist apparently moved, and they have placed back to a private person in

karachi, and he has been detained by the police. in terms of mobility and security, this is as open as any office. i have walked in here without any, because of the police office and is for citizens. when it comes to an attack like that, i think intelligence agencies can tell better. , ., ., think intelligence agencies can tell better. , , ., , ., think intelligence agencies can tell better. , , ., , better. very good questions to be asked. better. very good questions to be asked- thank _ better. very good questions to be asked. thank you _ better. very good questions to be asked. thank you very _ better. very good questions to be asked. thank you very much, - better. very good questions to be | asked. thank you very much, local journalist from karachi, hunain ameen. let's go to memphis, tennessee, where five former police officers pleaded not guilty to second—degree murder — and other charges — in the case of tyre nichols. mr nichols, a young black man, died after a police beating in memphis, tennessee last month. videos showed the officers repeatedly kicking and punching nichols in a traffic

stop close to his home. the five officers, all out on bail, entered their not—guilty pleas during an arraignment hearing in shelby county criminal court. tyre nichols�* mother made this statement outside the court. i know my son is gone. i know i'll never see him again. but we have to start this process ofjustice right now, and i want each and every one of those police officers to be able to look me in the face — they haven't done that yet. they couldn't even do that today. they didn't have the courage to look at me in my face after what they did to my son. so, they're going to see me at every court day, everyone... exactly. — ..until we getjustice for my son. i'm joined now by barbara plett

usher in washington. we just heard from tyre nichols's mother a lot of emotion and the judge emphasising that the accused have a right to a fair trial. is that possible, do you think? well, the lawyers _ that possible, do you think? well, the lawyers say they _ that possible, do you think? -ii the lawyers say they believe they accompanied... we didn't have a chance to see the expressions on the faces of the five because they were using masks, but all of the lawyers put not guilty. at least one of them has said the public doesn't know the full picture. the public has seen quite a lot given that video, that very brutal video released, but they haven't seen everything. there will be other evidence put forward. but

the judge be other evidence put forward. but thejudge did speak be other evidence put forward. but the judge did speak to the context of the case. he said it could take a long time because there was a lot of evidence, and emotions were high. he urged people to be patient and civil and said that the most important thing at this stage is that everyone has a right to a fair trial. that's going to resume and will take some time to play out. the mother of tyre nichols said she will be at every hearing, every trial, because she wants to be there to make sure that her sons getjustice. —— son get justice. i think there is a feeling around the country that there should be some accountability, but is a matter of meeting and having a fair trial. �* . . matter of meeting and having a fair trial. 1, ., ., ~ matter of meeting and having a fair trial. 1, . . ~ , ., , . we can speak now to michelle mckissack, a local memphis politician

who is running for mayor. michelle, thanks for joining michelle, thanks forjoining us. a lot of emotions. tyre nichols only died in earlyjanuary, and lot of emotions. tyre nichols only died in early january, and yet we've already gone to the start of the trial. how do you feel, how to the rest of the people in memphis feel about the speed at which this is taking place?— about the speed at which this is takin: lace? ., ~' ., ., taking place? thank you for having me. taking place? thank you for having me- that's — taking place? thank you for having me. that's one _ taking place? thank you for having me. that's one of _ taking place? thank you for having me. that's one of the _ taking place? thank you for having me. that's one of the gratifying i me. that's one of the gratifying parts. if there's any silver lining, the speed at which it's been addressed, from the fact that the memphis police, how they put them on leave so quickly. now we are addressing where the police officers have been arraigned and now that they have entered their first plea of not guilty. the fact this is proceeding at this pace is encouraging because this is the steps we need to take all collective

healing, that we're all experiencing along with us as well. not to the to grief his family is, but this is significant to our community. michelle, you're running to be mayor of memphis. the suspect in this case have a right to a fair trial, we're still proceeding through that trial. but they were all a member of an anti—crime squad. what does that say about the training that the police have and what would you do to try to deal with the issue of police brutality in memphis and elsewhere in the us? ., v brutality in memphis and elsewhere in the us? . �*, , brutality in memphis and elsewhere inthe us? . �*, , , in the us? that's right. this is something _ in the us? that's right. this is something we _ in the us? that's right. this is something we definitely - in the us? that's right. this is something we definitely need| in the us? that's right. this is l something we definitely need to in the us? that's right. this is - something we definitely need to take a closer look at. that specialised unit, i call for it to be disbanded. after that video was released. we have since done that. we also took a closer look at other specialised units within the memphis apartment.

as running for mayor, what i'm also calling for is a liberal of training, and there is no accountability on that night —— the level of training. we need to focus on the type of training that officers are having, notjust here but across the country. i happen to know that about 80 hours of armed trainings is where officers receive about four hours of de—escalation, critical thinking skills training and cultural training. critical thinking skills training and culturaltraining. how critical thinking skills training and cultural training. how do we de—escalate the situation before it gets to the horrible level which it got to the night that tyre nichols died? ., �* ., ., died? you're the mother of three ounu died? you're the mother of three young sons- _ died? you're the mother of three young sons- has— died? you're the mother of three young sons. has this change - died? you're the mother of three young sons. has this change the | young sons. has this change the conversations you have a home with your children? it conversations you have a home with your children?— your children? it has. we have four children, three _ your children? it has. we have four children, three boys _ your children? it has. we have four children, three boys and _ your children? it has. we have four children, three boys and a - your children? it has. we have four children, three boys and a little - children, three boys and a little girl, but our son there are 19, 20

and 24. it is something that gives you a pause. you have to have this conversation every time they go out. if you get pulled over, the types of things you should do. put your hands on the wheel, turn on the light and not make any swift movements. my not something you have to have. our son just wanted time, but the conversation that needs to be have. hopefully this horrible tragedy, is silverlining. i was with tyre's mum where there was a beautiful... the first time i've seen her smile throughout all this. she said that's what she wants her son to be remembered for. he loved to come down to the river and take picture of the sunset. that's what we want, just to enjoy their lives doing the same. this is a conversation of how

we can come out of this better, but also for our country. i think we've been a beacon for that in terms of how swiftly we've moved to make sure we are working forjustice towards a tyre. we are working for “ustice towards a t re. ., ~' , ., , we are working for “ustice towards a tre. .mg ,�*~ tyre. thank you very michelle mckissack- — here in the uk, a deal could be in the works. the british prime minister rishi sunak has met northern ireland's political parties. there's rising speculation the uk is close to reaching a new agreement with the european union on post—brexit trading arrangements. the northern ireland protocol had allowed goods to travel over the border into the republic of ireland without checks on the northern side. that meant goods were inspected before reaching northern ireland, creating a border with the rest of the uk. but that's always angered unionists who are eager to protect northern ireland's ties with the rest of the united kingdom. they feel they've been cut off from the rest of the uk. our ireland correspondent, emma vardy, has the latest it's divided communities,

while the dup collapse the government over it. the tensions over the northern ireland protocol have had consequences for everyday lives. today, i had positive conversations with parties in northern ireland over discussions to resolve the northern ireland protocol. now, it's clear we need to find solutions to the practical problems the protocol is causing families and businesses in northern ireland, as well as address the democratic deficit. in belfast, rishi sunak met the parties privately. sinn fein, who support the protocol arrangements, were reassured by what he had to say. it's clear now that significant progress has been made and we're very heartened by that. we now want to see a speedy conclusion of matters and above all else, we want to see the institutions restored, government restored here in the north. his last and longest meeting

of the day was with the dup. remove the barriers to trade . within the uk internal markets. there's been scepticism over whether any deal would go far enough to reassure the most staunch that northern ireland's trading position within the uk has been fully restored. i want to hear that brussels l will stretch itself to recognise the concerns that we have - as unionists and that this process will correct the wrongs. of the last negotiations. i do not believe that anyone should be led by a calendar. _ i am fundamentally focused on getting this right. - the prime minister may use today's talks to strengthen his hand on getting any final concessions from brussels, but his presence here shows we are at the end game. here shows we're at the end game. so, what do we know about what's likely to be on the deal? an area of conflict has been the role of the european court ofjustice for resolving disputes. the uk government wants it at arms length.

there's expected to be some form of green and red lanes, so goods staying in northern ireland from great britain can face less checks. businesses are hoping it will mean much less paperwork for getting goods over the irish sea, but it's not yet clear how it would all work in practice. while for some companies, the protocol brings advantages, getting changes matters to businesses like this one. they've been unable to get certain ingredients overfrom britain because suppliers don't want to deal with the red tape created by the protocol. so, the northern ireland menu is different to the smoothie menu in london? yes. because you can't get the same goods out here? yes, yes. it's very frustrating because what it means is we've got to have a different menu than almost the entirely smoothie factory international business. but there are businesses like our own where itjust doesn't quite work for. this is a big moment for northern ireland for more than just trade. having no government affects many areas of life.

there's no guarantee one would be restored quickly, but getting a new deal on the brexit arrangement is seen as a first step. emma vardy, bbc news, belfast. at least 18 people have been... at least 18 people have been found dead in an abandoned truck near bulgaria's capital, sofia. the government says the vehicle appeared to have been illegally transporting about 40 migrants. 12 survivors have been taken to hospital. they were hiding under some timber. the health minister said the vicitms had died from lack of oxygen. he said the survivors were frozen, wet, and had not been fed for days. let's return to our lead story. the gun battle raged for hours and security forces went floor to floor through an office building in pursuit of the assailants. bbc urdu's reporter farhat javed

is in islamabad for us. take us through it. we know that the tele— has taken responsibility. what more can you tell us about that group? more can you tell us about that arou - ? , more can you tell us about that u-rou? , ., , , ., more can you tell us about that ..rou? , ., , , ., group? yes, it actually started some four hours ago- _ group? yes, it actually started some four hours ago. 7pm _ group? yes, it actually started some four hours ago. 7pm local— group? yes, it actually started some four hours ago. 7pm localtime. - four hours ago. 7pm local time. these heavily armed men entered police headquarters in the city of karachi. it is also the busiest and economical hub of the country. they enter the police headquarters and open fire at policeman. we now have a confirmed information about the number of militants who injured. these were three men who were heavily armed, and authorities now say that one of them blew himself up when he was in the fourth floor, and

two others were killed and they were on the rooftop. so far, four people have been killed. 15 others are injured. one is said to be critical injured. one is said to be critical in all of them have received gunshot injuries. there was the spokesperson of the taliban group. he said that theirfighters have of the taliban group. he said that their fighters have attacked a building in karachi and they claim responsibility for this. but this is not the first time that the taliban have done so. they have done so in the past it highly secure buildings. these such attacks have been coming. farhat, thank you very much for giving us the update.

president linsky says if he doesn't get more weapons, parts of ukraine will be completely destroyed. to the west should intensify its support for ukraine. chancellor scholz warned against hasty decisions. with me is justin warned against hasty decisions. with me isjustin crump, from the intelligence company civilian. thanks forjoining us. once again, we have president zelensky of healing for allies to speed up. what's the problem here? is it logistical or do politicians does not understand that they need to move more quickly? it’s not understand that they need to move more quickly?— not understand that they need to move more quickly? it's a bit of all the above- — move more quickly? it's a bit of all the above- i _ move more quickly? it's a bit of all the above. i thought _ move more quickly? it's a bit of all the above. i thought -- _ move more quickly? it's a bit of all the above. i thought -- saw - move more quickly? it's a bit of all the above. i thought -- saw a - move more quickly? it's a bit of all the above. i thought -- saw a new| the above. i thought —— saw a new message, "we need better weapons and we need them now." you have

different factors, particularly in germany, and then you have the military factors. they don't want to give up their current weapons. on top of that, we have the actual supply phase. since the end of the cold war, it's mine down. —— wound down. what's amazing is how much the community has pulled together to deliver what it has done. though they'd want more, ukraine has received a lot.— they'd want more, ukraine has received a lot. this production has had to ramp _ received a lot. this production has had to ramp up- — received a lot. this production has had to ramp up. can _ received a lot. this production has had to ramp up. can you _ received a lot. this production has had to ramp up. can you put- had to ramp up. can you put into context for us? what were they making before? in context for us? what were they making before?— context for us? what were they making before? context for us? what were they makin: before? ., ~ ., making before? in the cold war, we were preparing _ making before? in the cold war, we were preparing for— making before? in the cold war, we were preparing for a _ making before? in the cold war, we were preparing for a land war - making before? in the cold war, we were preparing for a land war in - were preparing for a land war in europe. you would think the fighting in ukraine was a fraction of the front line we might have seen in germany in the 1940s. you can still

see the remains of germany and compounds, were huge. after 9090, we were it's really firing artillery —— after 1990. were it's really firing artillery —— afteri990. so, it was were it's really firing artillery —— after 1990. so, it was a change of the way we needed to use equipment. we have stockpiled some 1990 onwards. it was old—fashioned of. let's just focus on what's going on in ukraine. can you update us on the status of this key city, particularly as we get close to the anniversary of the invasion? find anniversary of the invasion? and this is really _ anniversary of the invasion? and this is really key _ anniversary of the invasion? fific this is really key because putin's giving a speech next week and the belief is he's hoping to celebrate the final chapter of bakhmut. it is not a significant city. there's been fighting over it because taken on

the iconic city. it is about to be captured. i think ukraine is determined to hold onto it, just tonight at victory. —— dean i. héeri; tonight at victory. -- dean i. very briefl , tonight at victory. -- dean i. very briefly. anything _ tonight at victory. -- dean i. very briefly, anything else we - tonight at victory. —— dean i. very briefly, anything else we should look towards? i briefly, anything else we should look towards?— briefly, anything else we should look towards? i think there will be increase in — look towards? i think there will be increase in attacks _ look towards? i think there will be increase in attacks across - look towards? i think there will be | increase in attacks across ukraine, as well as its location —— just to deny. as well as its location -- “ust to den . . . , . as well as its location -- “ust to den. . . ., ., deny. fantastic to get that analysis. thank _ deny. fantastic to get that analysis. thank you - deny. fantastic to get that analysis. thank you very i deny. fantastic to get that - analysis. thank you very much, justin crump. thank you very much forjoining us on bbc world news. do stay with us. bye—bye.

good evening. friday certainly shaped up to be a tale of two halves. further a tale of two halves. south, soil temperatures of i7 further south, soil temperatures of 17 celsius, a very mild day, i7 celsius, a very mild day, temperatures above where we expect at the time of year. this curl of cloud will storm otto moving away. this one less potent, but it will continue to bring outbreaks of rain. a bit of rain pushing software �*s, this area wet weather turning to snow over high ground. giving rise

to some ice and saturday morning. quite a chilly night across scotland, but further south, very mild indeed. into tomorrow, a band of cloud and patchy rain pushing across the south. another band affecting central and southern parts of scotland and northern ireland and england, bringing some outbreaks of rain. in between those various rain bands, we should see some spells of sunshine. one or two showers and temperatures 7 degrees for aberdeen, but 15 high and more rich. saturday, we will continue to see some slashes of rain. saturday night will be quiet with this ridge of high pressure. high pressure will hold in the south and sunday, where further north, that's what is the system will work its way in. quite heavy rain over high ground in the northwest of scotland. patchy rain

from northern ireland the far north of england, further south, some spells of sunshine. a breezy day and a windy day out towards the north of scotland. not as windy as it has been today. temperatures between 10-14 , been today. temperatures between 10—14 , so it been today. temperatures between 10—14, so it will be been today. temperatures between 10—14 , so it will be a very mild filling day. frontal systems up to the north, so some rain at times in the north, so some rain at times in the north, so some rain at times in the north of scotland, but to the south of that, we'll be in a wedge of mild air. temperatures to start a new week widely into double digits. it does look like turning a little more unsettled and perhaps a little chillier later in the week.