Kiss had taken two girls - believed to be hers - to the pop star's sold-out concert.
Police officers stand next to floral tributes left for the victims of an attack on concert goers at Manchester Arena, in St Ann's Square, in Manchester, Britain May 24, 2017. Under normal circumstances, he said, Abedi may have been able to travel to the United States because he was from Britain, a visa-waiver country, but he would have been subjected to a background check via the US government's Electronic System for Travel Authorization, or ESTA. The government said almost 1,000 soldiers were deployed instead of police on Wednesday in high-profile sites in London and elsewhere.
Akran Ramadan, who is part of the Libyan community in south Manchester, said he understood Abedi had been placed on a "watch list" after the mosque banned him and reported him to the authorities for his extremist views.
Prime Minister Theresa May announced late on Tuesday that the official threat level had been raised to its highest level for the first time in a decade, meaning an attack could be imminent. The father, Ramadan Abedi, denied his son had links to militants in an interview with The Associated Press before he was taken into custody, saying, "We don't believe in killing innocents". "This is not us".
He confirmed that another son, Ismail, 23, was arrested Tuesday in Manchester.
He said he fled Tripoli in 1993 after Moammar Gadhafi's security authorities issued an arrest warrant and eventually sought political asylum in Britain.
Authorities said they were also attempting to determine if Salman Abedi had any ties to Raphael Hostey, a British recruiter for ISIS who died past year during a drone strike, according to the New York Times. The traditional ceremony at the palace is a major tourist attraction in London.
The victims of the attack were still being identified on Wednesday, and pictures of British troops deployed in the central government district in Westminster, armed with assault rifles, dominated the news.
Abedi, 22, was a British citizen born to Libyan parents and grew up around Manchester.
Heavily armed police raided an apartment building in Manchester on Wednesday afternoon, blasting the door open with a controlled explosion.
It said security services were concerned further bombs could have been created by a network intent on carrying out further attacks. He said don't treat me like a child. "If that is something we did, I think that's a real problem", he said.
Eight men have now been detained in Britain connection with Monday's attack. The leaks are thought to have come from U.S. law enforcement rather than from the White House.
A relative told AFP that Abedi had travelled to Manchester from Libya four days before the bombing.
The MI5 domestic security service is managing around 500 active investigations, involving some 3,000 "subjects of interest", the senior government ministry source said.
Several details, including the identity of the attacker, appeared on US media outlets before British security forces were ready to release the information.
She said the Americans had not compromised the Manchester investigation and that the Trump administration is "perfectly clear about the situation".
In addition to those killed in the concert attack, 64 people are being treated for their wounds, Jon Rouse of the Greater Manchester Health and Social Care Partnership said Wednesday.
Libya said it was working closely with Britain to identify possible "terrorist networks" involved.
Sylvia Hui Rob Harris and Angela Charlton contributed.