this is bbc news with the latest headlines for viewers in the uk and around the world. appeals for calm after a fourth night of violence in the us city of minneapolis following the death of george floyd, a black american, in police custody. a former police officer is charged with murder and the pentagon puts the us military on high alert. anger has spread across america. a state of emergency is declared in georgia. atlanta's mayor calls for an end to rioting. you are disgracing our city. you are disgracing the life of george floyd. a number of scientists advising the uk government warn relaxing

the lockdown is still too risky amdist fears the warm weather this weekend could lead people to ditch social distancing. the uk is reporting something like 2000 cases per day. italy about 300 cases per day. germany about 400 cases per day. germany about 400 cases per day. the level of incidents in the uk is higher. india's daily total of new coronavirus cases hit another record high today — with nearly 8000 new infections. and — us business magazine forbes removes reality tv star and entrepreneur kylie jenner from its list of billionaires, accusing her family of inflating the value of her cosmetics business.

hello and welcome if you're watching in the uk or around the world — and stay with us for the latest news and analysis from here and across the globe. the united states has been waking up to the aftermath of violent disorder on the streets of some of its biggest cities. it was in response to the death of a black american, george floyd, in police custody. protestors broke an overnight curfew in minneapolis where the incident happened. political leaders have appealed for calm. george floyd died on monday after a police officer, derek chauvin, who is white, was shown in footage kneeling on his neck. the officer has been sacked, arrested and charged with murder. anger spread from minneapolis itself, where there have been four nights of riots, to other major cities including los angeles, new york, atlanta, houston,

louisville. in washington dc the white house went into partial lockdown. and it's prompted this tweet from president trump. back in in minneapolis, this was the scene as dawn broke, with police still on the guard and fires burning in the streets. our correspondent barbara plett—usher is there. minneapolis is under curfew, but the city is still burning. outrage over the police killing of an unarmed black man has consumed people here for four days, with street protests but also arson and looting. the state deployed the national guard to restore order, and local officials moved unusually quickly to charge the police officer with third—degree murder and manslaughter.

he's the one in the video kneeling on the neck of george floyd for nearly nine minutes while mr floyd cried out again and again that he couldn't breathe, and then stopped moving. the governor of minnesota has said that he expects swiftjustice, but the question is whether that will be enough to quell the rage that was ignited here and is now spreading across the country. america is looking at a long, tense weekend. the protests have spread and grown. in los angeles, demonstrators clashed with police officers. in manhattan, they marched also in memory of eric garner, a new york man who gasped for air in a police chokehold before he died. in atlanta, one of the country's biggest protests suddenly turned violent, angering the mayor. what i see happening on the streets of atla nta what i see happening on the streets of atlanta is not at lantana. this is not a protest. this is not in the spirit of martin luther king jr.

this is chaos. the wave of demonstrations reached right to the president's doorstep. the white house was under lockdown late friday evening. earlier, mr trump gave his first extensive remarks on the protests. we can't allow a situation like happened in minneapolis to descend further into lawless anarchy and chaos, and we understand that very well. it's very important, i believe, to the family, to everybody, that the memory of george floyd be a perfect memory. america is reeling. in the middle of a pandemic, suffering its worst economic crisis since the great depression. and now, once again, watching its racial fault lines explode. barbara plett usher, bbc news, minneapolis. well, deryck miller lives and works in minneapolis and has seen the impact the death of george floyd has had on the city and hejoins me now.

good morning. isay good morning. i say good good morning. isay good morning, but it has been a long night. yes it has. what you make of what is happening in minneapolis right now? i think people are just tired and trying to do the right thing, not necessarily earn the right way. trying to do the right thing, not necessarily earn the right waylj saw the governor seeing he could understand the fury and rage that people feel, but this is not grieving for george floyd. how do you characterise what you are seeing? i guess as a black american living in the city, building a business and a family, it is fair to say you have had your run ins with the police over the years but you are not out on the streets and you have been telling a producer you and yourfamily have been telling a producer you and your family have not been out on the streets. why have you made that choice? i am sorry. what was the

last part? why have you made the choice not to go out when others clearly feel strongly that they want to be out protesting? because i believe that i understand what is going on but the way it is being demonstrated in certain situations, thatis demonstrated in certain situations, that is why we have not gone out. but i have gone out there to see what is going on. in protection of one of my friends, at a mechanic shop, to make sure it did not get looted or broken into. that allowed me to see what was going on. very surprising, what i saw. i want to ask you more about that in a moment. we do stay with us for a moment. the governor is speaking now. let us hear what he is saying that i will come back to you. to do what we can to restore order.

we mobilised the largest mobilisation of the national guard that were in the field last night, of over 700. we pulled in state patrol and state assets to augment the minneapolis force. as i told people, this is not an infinite numberof people, this is not an infinite number of people that we can pull. that state patrol is a highly trained, highly organised force, that when every single one of them is up and operating, is at about 700. you cannot operate all the time oi'i 700. you cannot operate all the time on that. the same thing with the minnesota national guard. and of course, the cities. as you saw this expand across the united states, and you start to see, whether it be domestic terrorism, whether it be ideological extremists, to fan the group, or whether it be international of the stabilisation of how our country works, those elements are present in all of this. i spoke early this morning with the

secretary of defence and the chairman of the joint chiefs of staff extensively, to update on the situation, receive the report as they are seeing it across the country, and to suggest courses of action of going forward. in consultation with it mayors and the resources they have, and just to be clear, as you witness this, whether it be new york or denver or las vegas, there is no mayor in america that has the resources to push back oi'i that has the resources to push back on an that has the resources to push back on an organised attempt to destabilise civil society with no regard for life or property. in consultation as a group, as we said this morning, i am authorising and talking with the general to fully mobilise the minnesota national guard, and action never taken in the 164 year history of the minnesota national guard. we will pull in assets as we have been doing. for those who are wondering where are the fire tracks, where are the

police that are out there? the situation is so broad, and the tactics were so bent on causing destruction, that every single person we had mobilised, again the largest in state history last evening, was engaged in batch. by this afternoon our hope is to exponentially have that force out there, to use all other resources in there, to use all other resources in the state and there are partnerships of sister cities across the other counties to help as. and i have made initial calls and will be speaking with the governors of adjacent states who are providing significant support through their national guards. the message is clear, minnesota. we had a tragedy on monday night. we understand the work that we need to do and the generational pain that went into what happened with george floyd and that murder. but at this point in time, nothing we do to address those inequities, nothing we do to provide justice to george floyd and his

family that i spoke with last evening, none of those things matter to any of these people who are out there filing upon national guard, burning businesses of our communities, and making intent on disrupting any semblance of civil life. in partnership with that mayors and the team that is here, throughout the day today, there will be peaceful protests that were previously scheduled. they will be large, as anticipated. and today will be an expression of that grief of the of george floyd. there will be legitimate exercising of first amendment rights. every single person in this room will put all of these resources we are talking about to protect their right to do that, to protect their right to do that, to protect their rights to gather as a community. i will continue to stress, because it seems a lifetime

ago, we are still in the middle of a pandemic, and passed 1000 deaths yesterday, we still have hospitals oi'i yesterday, we still have hospitals on the verge of being overrun with covid—19. the people that are gathering out there, and if you watch, on tuesday and wednesday, social distancing masks, the mask la st social distancing masks, the mask last night were worn to disguise, they were not worn, they were worn to cause confusion, but the rest of us to cause confusion, but the rest of us need to maintain that. for people asking a legitimate question, the safety and concern of everyone in this room is apt all night, the nightmare of these people starting fires that can jump. nightmare of these people starting fires that canjump. at nightmare of these people starting fires that can jump. at this nightmare of these people starting fires that canjump. at this point in time it is nothing short of a blessing that we have not had someone blessing that we have not had someone killed in this. that situation can be expected to deteriorate further with these people. as you'll hear from the commission, they are adapting, receiving information together, they

are being fed by professionals in with professional tactics in urban warfare , with professional tactics in urban warfare, those types of things are happening with these people. again, asi happening with these people. again, as i said, they are getting what they want, they are getting on tv, they want, they are getting on tv, they are seeing the images, they have the governor of minnesota setting up peer at half past two at night talking about how we are moving things around and they are getting what they wish, today they're going to get what they wish, they're going to get what they wish, they will have overwhelming force of safety, security and peace, and citizens of minnesota and our neighbours are going to provide to them, they will see coordination to them, they will see coordination to the best of our ability to make sure that this stops and it ends. that is going to happen. i am speaking with governors across the country who are in the same situation, trading information, many cities are where we we re information, many cities are where we were on wednesday night, and they are expected to be where we were on thursday night. that is the situation that must end. minnesota, this is a challenge in time. our

great cities of minneapolis and st paul are under assault the people who do not share our values, who do not value life and the work that we nt not value life and the work that went into this, and certainly are not here to honour george floyd. they need to see today that that line in that order is to be restored. with that i want to welcome the minneapolis mayor, and somebody from the beginning who saw this before any mayor in the country and requested the national guard support earlier than any mayor in the country, and now this situation is requesting the next step of full mobilisation. thank you, governor. this show of force tonight has got to be about safety, security, peace and order. our minneapolis residents are

skiers, and rightfully so. we have seen a long—term institutional businesses overridden. we have seen community institution set on fire. i wa nt to community institution set on fire. i want to be very clear. the people that are doing this are not minneapolis residents. they are coming in largely from outside of the city, from outside of the region, to prey on everything that we have built over the last several decades. the dynamic has changed over the last several days. if you look at tuesday, it was largely peaceful protests, the vast majority peaceful, the vast majority of people from our city, with a small group of people looking to have intentional disturbance. gradually that shift was made and we saw more and more people coming from outside of the city. we saw more and more people looking to cause violence in

our communities. i have to say it is not acceptable. if you are concerned, i get it. if you have family members or friends who are even considering protesting, this is no longer about protesting. this is no longer about protesting. this is no longer about verbal expression. this is about violence and we need to make sure that it stops. we are in the middle of a pandemic right now. we have two crises that are sandwiched on top of one another. in order to make sure that we continue to have the necessary community institutions we need to make sure that our businesses are protected, that our businesses are protected, that they are safe, and that they are secure. to our minneapolis residents, we are with you, we will be immobilising the largest force that has ever come forward in the

state of minnesota history to help. we understand that you are concerned. we want to be there for you. that is the mayor of the city of minneapolis. we heard before that the governor of minnesota. let us get back to our guest who we were talking to a few minutes before. thank you for holding on to listen to that. ido holding on to listen to that. i do not know what you thought about what that governor and mayor had to say. i suppose the message is quite familiar over the last few hours. yes, it is. are they right to try and get some kind of control back in the city or does this anger has to burn itself out? the approach is

going to be very important, how they approach this sensitive situation. you are dealing with a lot of anger, a lot of pain right now in the cities. i am a lot of pain right now in the cities. iam not a lot of pain right now in the cities. i am not sure how to resolve that but order is definitely necessary. i do want to add, after the city of st paul went through what we did on thursday, friday morning was a beautiful sight, seeing the community come together and clean up that total area as one. we do love our city of st paul. as a black man i am seeing, we are ready for change. i do not think this is the way to go about it. but i understand the pain that is out there. it can be done differently. i suppose it is the frustration that the people who end up suffering our fellow people in the city who maybe

have nothing to do with the terrible events that happened and in a sense become another set of innocent victims of the violence? definitely. definitely. you brought up four boys asa dad. definitely. you brought up four boys as a dad. what kind of advice have you given them over the years how to deal with when they ran into police officers? have they had difficulties? did you have to prepare them for that possibility? because a lot of people in other parts of the world might not understand this. yes. a lot of people do not. we do have to u nfortu nately people do not. we do have to unfortunately at a young age give them instructions how to deal with police, pray that they would be any safe situation. a certain way to

react when the art pulled over and make sure they are being polite and being very co—operative. make sure they are being polite and being very co—operativelj make sure they are being polite and being very co-operative. i pray that everything will be ok. do you think last monday's deck might finally change something? last monday's deck might finally change something ?|j last monday's deck might finally change something? i pray that it does. i think that what we are seeing right now is partly to do with last monday's death, but there is many years of destruction to be honest. there has to be a change in how we are governed by the police. i believe it should be a requirement if you police a certain community you should live in that community. i do not understand why that is not being done. good to speak to you.

thank you very much for talking to as on bbc news. we hope for a better night and as on bbc news. we hope for a better nightand a as on bbc news. we hope for a better night and a better a few days ahead. now on bbc news it's time for your questions answered. while the world races to find a vaccine for covid—i9, many countries are using contact tracing to help reduce the spread of the virus. it involves tracking down anyone that somebody with an infection may have had contact with in the days before they became ill. it is being used extensively by countries including singapore and germany and the uk is planning to roll out its contact tracing app later this month. to answer your questions on the topic, we'rejoined by dr linda bauld — professor of public health,

at the university of edinburgh and dr zoe williams. how can we be sure that phone calls instructing as to isolate are genuine? what about malicious information, somebody might get hold of my numberand information, somebody might get hold of my number and tell me this and there was nothing wrong with me? there is a lot of public anxiety. we have been doing contact tracing in public health for many years for other things like tuberculous, sexual health. but i understand the anxiety. schemes vary across the uk. focusing on england where i guess most of the questions are coming from, it will come from a verified number, it is notjust anybody ringing up. i looked at the number. people need to check that it is coming from a genuine source. also, the website that people will be

asked to use will be a bit like when those who renew for example our vehicle tax, or apply for a new passport. it is a government website, an nhs website, clearly people need to check it is coming from a genuine source and ask questions. but that is a specific number. people should be hesitant and not respond to people who they think asking strange questions. passwords will not be asked for over the phone. banking details of that sort of thing, that is a red flag. but government is working hard to try and give public confidence on this, from what i understand. let me put a couple of questions to you. i do not know how you feel about these. one of these is quite specific. can you please explain why patients do not have been asked to verify their identity with an american credit rating agency? and somebody says, they have spent the last few years fending off cold

callers, how can they be sure the callers, how can they be sure the call is genuine? just to add to linda's point, anybody, rightly so, should be alerted to this, there is a website where you can find all of this information. a government website. the number that has been mentioned is on there. as are the list of questions that you can expect to be asked, and a list of questions that you can expect not to be asked. if there is anything that you think is suspicious you are within your rights to say, i am going to take a minute here, i am rights to say, i am going to take a minute here, lam not sure rights to say, i am going to take a minute here, i am not sure about this, can you call me back? there is the option as well if people do not feel comfortable discussing this stuff over the telephone, there is a web—based option as well. if you would rather communicate through text or e—mail, they will give you

instructions how to access that interaction. i think the government are trying to do everything they can to make sure people feel comfortable and safe and secure. that is of the utmost importance. and this has been described as a dad's army approach? why all this, in the view of a questionnaire, misguided privacy issues? at the moment the app is something that is coming, hopefully within the next few weeks. at the moment they have these 25,000 people, actual real people who have been trained to contact chase. as was said just before, this is not something that is new. at this point in time this is new. at this point in time this is the most useful and appropriate way of doing this, having a conversation with somebody if you do test positive, that person can help you identify who would be classed as a close contact. it is not that

straightforward. people have probably heard that to be classed as a. contact... i am going to stop you for a moment while our international viewers leave as. you are watching bbc news. just to pick up on what you were seeing, this thing about a close co nta ct? seeing, this thing about a close contact? a close contact is defined as somebody you have been a close proximity to, less than two metres, for 15 minutes or more, a car journey, for example. also somebody you had actual contact with, if you have shook somebody's hand, given somebody a hug, have shook somebody's hand, given somebodya hug, or have shook somebody's hand, given somebody a hug, or if you live in a house with somebody. it can be difficult for as as individuals to work out who our close contacts are. at the moment having a conversation with somebody who has been trained, and at the moment as well, we are likely to know who we have been in contact with. that is likely to change in the coming months as we will not know everybody who is on the bass with as, for example. at

the bass with as, for example. at the moment this trained army is the best and most appropriate way of doing it but moving forward the app is going to come into its own when we reach a point where we are not necessarily going to know all of the people we have been in touch with. hopefully that will then kick in at that point stop that app has been trialled at the moment on the isle of wight. linda, this is another question. i am assuming that the questioner is expecting somebody special to come and see them, they ask, if somebody from the united states chooses to be quad and my house to follow government instructions? would you as a resident be affected by that?|j think resident be affected by that?” think we are all looking forward to in the future relatives coming to visit. to be very clear, if somebody chooses to reside with you and this quarantine with a family member, the other members of that household only need to follow that advice if the

person develops symptoms. that is consistent with the advice we are all try to follow now which is a somebody in the house will develop symptoms entire household has two isolates. if someone is coming off a plane... what criterion are used for people who have been close to you chris jackie is trying to establish if we are doing something different? there has been rapid signs to see how this virus travels. south korea is one of the pioneers, they are using the same kind of definitions that were just mentioned. within two metres for more than 15 minutes. somebody for example that you might

have been sitting on a plane with, when we start to contact chase, the row in front, the row behind. these definitions are not unique to the uk, they are being applied internationally. this person asks, they are over 70, live alone, do not drive, what would they do if they were contacted and told needed to take a test? the first thing to mention on this is that anybody who has symptoms, anybody with symptoms, should request a test. there are two ways to do that, on the nhs website, or for people who do not have the internet, they can dial 119. in this particular case, if she was contacted by a contact tracer, if she had been in contact with someone who had tested positive, she would be asked to self—isolate for 14 days, not necessarily what would not

be asked to do a test. if she developed symptoms, then that is the time to do a test. some people find that a bit confusing. some of the reasons for that, even if you were to do reasons for that, even if you were todoa reasons for that, even if you were to do a test as a close contact and it was negative, you would still be required to self—isolate for 14 days. part of these and for that as you could be carrying the virus but not have developed symptoms yet. in that scenario he test is likely to be negative even though you are still at risk of transiting it to others. if you are contacted by a contact research will be asked to stay at home are self—isolate for 14 days, but only if you develop symptoms would you apply for a test, you can do that by dialling 119, and a test can be delivered to your home. i spoke to a colleague who said she did it at home, it was straightforward, someone came and