Intelligence sharing between the UK and the US resumes after row
Police search a property in Wigan following an assessment by a bomb disposal team
Police say they have made "significant" arrests - eight people are still in custody
Raids on properties have yielded "very important" items, police say
The Queen has visited victims at Royal Manchester Children's Hospital
A national minute's silence has been held to remember victims
Suspected suicide bomber is UK-born Salman Abedi, 22, of Libyan origin
Jennifer Meierhans
BBC News Online in Manchester
Africa Hart, 25, from Manchester, said she and her friends wanted to attend the Manchester vigil to show solidarity and demonstrate that "love trumps hate."
They have created a bee banner. Bees – or worker bees – have been a symbol of Manchester for hundreds of years, originally as a motif of Manchester’s thriving textile trade and hard-working staff.
BBC Newsnight
One of the blood banks in Manchester is "full to the rafters", says one donor. Ian spoke to BBC Newsnight's Emily Maitlis in this emotional interview.
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Manchester attack: Blood bank 'full to the rafters'
Greater Manchester Police's Chief Constable addresses the crowds...
Chief Constable Ian Hopkins said he was heartened to hear the acts of kindness from emergency service workers and normal people during last night's atrocities.
He said: "The people of Greater Manchester showed the people of the world how much we care, how much we care about one another, and how much we care for those in need."
He also thanked "the rest of the world for holding us in their thoughts".
Image source, Getty Images
Image source, ReutersThousands have turned out to pay their respects in Albert Square
Lord Mayor of Manchester, Eddy Newman, began today's vigil in Manchester by thanking the emergency services, which prompted huge applause.
He said: "The people of Manchester will remember the victims forever and we will defy the terrorists by working together to create cohesive, diverse communities that are stronger together.
"We are the many, they are the few."
Image source, Reuters
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A minute's silence will be held before Manchester United's Europa League final against Ajax in Stockolm on Wednesday and United's players will wear black armbands.
European football's governing body Uefa said in a statement: "The opening ceremony will also be considerably reduced as a mark of respect for the victims of the Manchester attack.
"This will mean that Swedish artists Axwell Ingrosso will now not be performing before the final."
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The prime minister has signed the city's book of condolence.
In it she wrote: "Here in this great city a callous and cowardly act was met by the inspirational bravery."
Image source, AFPTake That's planned concerts at Manchester Arena on Thursday, Friday and Saturday have been postponed.
It had earlier been announced that the group's scheduled gig in Liverpool tonight would not take place.
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A fundraising page for a homeless man who was in the foyer of the Manchester Arena when the bomb was detonated has raised over £3,000.
The page was set up by Michael Johns, who said he wanted to help Chris Parker "one of our most vulnerable in society who showed great selflessness and courage" as he helped those affected.
Jennifer Meierhans
BBC News Online in Manchester
St Albert's Square in Manchester is filling up before the vigil at 18:00 BST for the attack victims.
People are arriving with flowers or food and drink for volunteer marshalls.
There is a large police presence and the mood is quite quiet with people just standing still or talking among themselves. There is a huge amount of press here.
Image source, AFP/Getty ImagesGreater Manchester Police's suspect for yesterday's attack, Salman Abedi, was born in Manchester and was 22 years old.
He has at least three siblings: an elder brother who was born in London, and a younger brother and sister who were born in Manchester.
The family is believed to be of Libyan origin.
They have lived at more than one address in Manchester, including the property at Elsmore Road in the Fallowfield area that was raided by police today.
Neighbours described how the family would fly Libyan flags at some times of year.
If he did commit yesterday's attack, it would not be the first time we have had British suicide bombers.
Chief Constable Ian Hopkins added: "Part of [our] response has seen us arrest a 23-year-old man in connection with the attack and we have also carried out two warrants, one in Whalley Range and one in Fallowfield that included a controlled explosion to enable safe entry.
"We understand that feelings are very raw right now and people are bound to be looking for answers.
"However, now, more than ever, it is vital that our diverse communities in Greater Manchester stand together and do not tolerate hate.
"We have been visited by the prime minster and home secretary and we have taken them through the emergency response so far and what we plan to do in future days."
Ian Hopkins, Chief Constable of Greater Manchester Police, appealed for communities in Manchester to "stand together".
"Should any community suffer hate crime we will urge you to report it to us," he said in a press statement this afternoon.
"More than ever it is vital that our diverse communities stand together – we will therefore not tolerate hate towards any part of our community."
The suspect in last night's attack has been named by Greater Manchester Police's Chief Constable Ian Hopkins as 22-year-old Salman Abedi.
"Priority is to continue to investigate whether he was acting alone or working as part of a wider network," Mr Hopkins added.
BBC News Channel
Manchester mayor Andy Burnham said the city was "raw with grief" after Monday night's attack.
He also praised the "spirit of greater Manchester".
"People throwing their doors open – welcoming people in, driving people away from danger, that is the spirit of the place," he told BBC News.
A vigil will be held in the city at 18:00 BST.
A crowdfunding page keeps growing - nearly £400,000 has been raised to support the families of those killed and injured in the Manchester Arena attack, after being organised by the Manchester Evening News.
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The third victim of the Manchester Arena attack has been named as John Atkinson, 28, of Radcliffe in Bury.
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