BBC News Channel

The BBC's Norman Smith in Westminster says election campaigning might not resume for several days.

Given the raising of the terrorist threat level, "the prospect of the election [campaign] starting soon are receding", Norman says, with campaigning likely to be suspended "at least until the weekend".

London mayor Sadiq Khan says Londoners and visitors "will see additional police officers on our streets, you will see additional armed officers on our streets, you may see military personnel".

He urged people to tell the police if they see anything suspicious and said: "The key thing is to be calm and vigilant."

He said he wanted to reassure people and there was no reason to be alarmed: "It's right that we are prudent."

Mr Khan security experts were advising the organisers of major events like the FA Cup, the rugby premiership final and the Chelsea Flower Show.

Image source, Getty Images

As questions are asked about whether 22-year-old Salman Abedi, the man who carried out the Manchester bombing, acted alone - more details have emerged about the moments following the attack from the singer's drummer.

Writing on Instagram, Aaron Spears said the the band were evacuated from the Manchester Arena before they were told what had happened.

The UK terror threat level is now up to its highest level of "critical", meaning more attacks may be imminent.

"Initially we thought that the sound was all kinds of things but it didn't hit that this was a bomb until we were evacuated and they told us exactly what was going on."

He added it was "so heartbreaking because so many little ones attend our shows...I just keep thinking about them."

The musician, who has previously toured with Usher said the "painful memory and the weight associated with the lives lost will live with us all forever".

Read his full message below and keep updated with the BBC's live page on the attack.

Image source, Twitter

Kelly Brewster, from Sheffield, had been reported missing by relatives who appealed for help finding her.

Her partner, Ian Winslow, later wrote on Facebook: "Kelly Brewster wasn't one of the unidentified hospital patients. She has sadly passed away in the terror attack yesterday.

"Kelly really was the happiest she has ever been and we had so many things planned together. My daughter Phoebe will be absolutely devastated like we all are."

Twenty people remain in critical care in hospital and 64 are injured overall, Jon Rouse, chief operating officer for Greater Manchester Health and Social Care Partnership, says.

Some of those 64 are returning to hospital for treatment, they are not all inpatients, he says.

Among the injuries they are dealing with in relation to such a blast, he says, are loss of limb, trauma to major organs and embedded items.

BBC Breakfast

Imam Irfan Chishti from Manchester Central Mosque says he wants to make it clear that the Manchester attack "has no place in the religion of Islam".

There are people "who will try to divide", he says, but "united we stand".

Thousands gathered in Manchester's Albert Square last night to pay their respects to the 22 people killed and 59 injured in Monday's Manchester Arena attack.

The scene was replicated around the country as many cities and towns had vigils of their own.

In Northampton last night a vigil was held outside All Saints church, organised by the town's Inter-Faith Forum and the Committee of Northampton Mosques.

Speaking after the event, Father Oliver Coss, the rector of All Saints, said: "Evil has always been present in the world, it is an irrepressible force sometimes.

"What we have to do as communities is meet that with the thousands of acts of kindness that were very evident in Manchester yesterday.

"It's a question of what we want - do we continue the cycles of recriminations, or do we attend to making our neighbourhoods better, safer and more peaceful?"

Tom Darby
BBC Live reporter

If you're planning to use the Channel Tunnel you may see an increased security presence, which is a result of the Manchester attack.

Eurotunnel has just issued this statement addressing the changes:

At least two Polish nationals were killed and one was injured in the attack, the Polish Ministry of Foreign Affairs says the UK has confirmed.

The ministry says: "We share the pain of the family and the loved ones of the victims and express our most sincere condolences.

"Consuls have offered assistance to the family of the victims. The injured Polish national and his family have also received the necessary consular assistance.

"We call on Poles staying in Manchester to remain alert and to follow instructions given by the local services"

An emergency telephone number has been established for the families by the Polish Consulate General in Manchester: +44 (0) 77 69 97 57 19.

BBC Breakfast

Home Secretary Amber Rudd says she expects Operation Temperer - deploying military personnel to free up the police - to be in place for a limited time.

She says "we want to make sure that everybody feels safe" at upcoming events including the Great Manchester Run.

"We hope that people will carry on," she tells BBC Breakfast, urging people to be "vigilant but not alarmed".

Asked how long troops are expected to be deployed, Ms Rudd says: "I would expect this to be temporary. We'll see how long they're needed for."

BBC Monitoring
News from around the globe

Libyan media outlets have been largely silent on the revelation that the alleged Manchester attacker, Salman Abedi, was born to Libyan parents.

The majority of key Arabic-language TV channels and prominent news websites focus on domestic developments.

One of the biggest news websites, Al-Wasat, relayed the development.

But one English-language website, Libya Herald, says Libyans are shocked by the news. It cited locals as expressing their disappointment and condolences to Britain.

Image source, BBC Monitoring

An online fundraising target of £750,000, for an appeal set up by the Manchester Evening News to help those affected, has been achieved this morning.

Image source, Manchester Evening News

There'll be a minute's silence at the Headingley stadium in Leeds before England's one day international against South Africa today.

Image source, Google

The players will also wear black arm bands during the game as a mark of respect following the Manchester attack.

The Assistant Chief Constable of West Yorkshire Police, Angela Williams, says there will be a "significant policing presence" at the ground.

Former Manchester United defender Phil Neville says the city's renowned fighting spirit will help them through a difficult period.

Image source, Elvis

Bury-born Neville is in Stockholm ahead of Manchester United's Europa League Final against Ajax this evening.

"United boss Jose Mourinho's words yesterday were fitting that the players play with their hearts, their souls, their love for the families were affected.

"I was numb all day yesterday. I went through every emotion for the people that suffered.

"The spirit of Manchester has always been there and I think we've got to keep that spirit going."

Today Programme
BBC Radio 4

The Home Secretary, Amber Rudd, has said it seems "likely" the Manchester attack suspect was not acting alone. She said the intelligence services were pursuing leads to get all the information.

When asked about information being leaked from the US the Home Secretary said that it was "irritating" but she said she had been clear that leaks should not happen again.

Norman Smith
Assistant political editor

The home secretary has confirmed plans for "an uplift" in the government's counter-radicalisation strategy, our assistant political editor says.

Amber Rudd says there will be more money for Prevent. She also defended the anti-terrorism strategy against accusations that it has fueled tensions with the Muslim community.

Ms Rudd said last year alone it had stopped 150 people from travelling to Syria - including 50 children.

The government's former reviewer of terrorism legislation David Anderson this morning said Prevent needed to be "strengthened".

He said it only received 1% of the overall £3bn counter-terrorism budget.

And he acknowledged that Prevent was seen as "unpalatable" by some Muslim groups.

It has faced significant political criticism - including from Labour leader Jeremy Corbyn.

His party manifesto is committed to "review the Prevent programme with a view to assessing both its effectiveness and its potential to alienate minority communiites".

Meanwhile, a government source said US authorities had "got the message" after Amber Rudd criticised leaks of information on the Manchester attack.