Downing Street announced the Government's emergency Cobra committee will meet in Whitehall today to discuss the latest developments, chaired by the Home Secretary. "I will have details to share with you as soon as everything is confirmed", Grande wrote.
Greater Manchester Police chief Ian Hopkins and Neil Basu, the national coordinator of counterterrorism policing, urged people to contact police if they had information about Abedi's movements between May 18 and Monday night.
A 30-year-old man detained in the early hours of Friday morning in Moss Side, south Manchester. They are all men. The arrests have taken place in Manchester, Wigan and Nuneaton.
Corbyn promised to reverse the police cuts, many of them implemented by May in her previous role as interior minister, and said Britain could not be "protected on the cheap". "I have been thinking of my fans, and of you all, no stop over the past week".
Police arrested two more suspects Saturday over the deadly Manchester concert bombing, as Britons began a sunny holiday long weekend under heightened security.
Abedi's father Ramadan had sometimes performed the call to prayer at the mosque and his brother Ismael had been a volunteer.
Islamic State on Wednesday claimed responsibility behind the attack.
Manchester-born Abedi, a university dropout, grew up in a Libyan family in the northwestern English city. He is now a manager of the Central Security force in Tripoli.
The new insight into Abedi's motivation came as Britons faced stepped-up security, authorities pushed forward with raids and the investigation extended across Europe into Libya, where most of the suspected bomber's family lived.
The New York Times has defended the publication of leaked photographs appearing to show the bomb used in the Manchester terror attack and said the decision was "responsible". Police didn't provide any further information or say where Abedi was coming from when he landed in Duesseldorf.
Abedi detonated a device at the end of a concert by American singer Ariana Grande, a concert attended by many young girls.
A family friend, who spoke to the WSJ, said Abedi told his parents in Libya he was leaving to go on a pilgrimage to the Muslim holy city of Mecca within a week of the bombing.
Soon after the terror attack, Grande chose to suspend her "Dangerous Woman" world tour for at least two weeks.
President Donald Trump on Thursday described U.S. intelligence leaks over the Manchester bombing as "deeply troubling" and threatened to prosecute those responsible, after a warning by British Prime Minister Theresa May to keep shared data "secure".
Grande also took the opportunity to thank her fans for supporting her and each other and to comment on the motivation behind the attack.
Manchester health officials say 119 people sought medical treatment at the city's hospitals after the attack, and 64 are still hospitalized.