United Kingdom investigates 'network' of alleged Manchester attackers

"They arrested the father, and I think the rest of the family kind of disappeared", Khuri said, adding that he knew the man from the neighborhood and the mosque.

The most recent arrest came in the evening in Wigan, where police say they apprehended a "man carrying a package which we are now assessing".

And it is still unclear what kind of effect the Manchester attack will have on some of the largest USA concert venues like the Staples Center in Los Angeles and Barclays Center in Brooklyn, which did not immediately respond to requests for comment.

They were among the 22 killed Monday night at the Manchester Arena in the deadliest terror attack in Britain since 2005.

Police made three new arrests in South Manchester on Wednesday in connection with the concert bombing.

Details about the Manchester suicide bomb attack appeared on USA news sites before British police had publicly released them to the United Kingdom media. Salman Abedi, 22, was named the attacker and officials believe he acted alone. Security in the nation has been ramped up significantly in the wake of the attack, with up to 1,000 military personnel deployed on the streets to compliment police as part of "Operation Temperer", with soldiers taking up position outside of Buckingham Palace, Parliament and Downing Street among other high-profile spots.

Before the Manchester attacks, Prime Minister Theresa May had said that Britain would continue to share intelligence with the US and that she had confidence in the relationship between the two countries.

"News of Saffie's death in this appalling attack has come as a tremendous shock to all of us and I would like to send our deepest condolences to all of her family and friends", said Chris Upton, the head teacher at Tarleton Community.

French Interior Minister Gerard Collomb told BFMTV that Abedi had traveled to Syria as well as Libya and that he had "proven" links with the Islamic State.

Abedi was born in Britain to a Libyan family, grew up in Manchester's southern suburbs and attended the local Salford University for a time. He fled Libya in 1993 when the forces of Muammar el-Qaddafi issued a warrant for his arrest and received political asylum in Britain, where Salman Abedi was born and raised. The BBC reported that one of the men is Abedi's brother.

Burnham also criticised the Prevent programme, saying there was a danger of it "casting a cloud of suspicion over a whole community" in a way that could damage rather than enhance relations with the police, as happened in Northern Ireland during the Troubles.

Collomb, who spoke with May after the attack, said the two countries should continue cooperating closely on counterterrorism efforts despite Britain's pending exit from the European Union.

The BBC reported that the security services thought Abedi may have been a "mule" for a bomb made by someone else, because they thought the device was too sophisticated for him to have put together by himself. Ramadan Abedi also confirmed that police have arrested another of his sons - believed to be 23-year-old Ismail Abedi.

Speaking to broadcasters, Rudd said she expected the presence of soldiers on the streets to support armed police would be temporary, after a decision was taken to raise the threat level from severe to critical on Tuesday night.

The minister said she was "not surprised at all" that the attack had been claimed by the Islamic State group, but said there was no information yet to confirm the extremist organisation's active direction.

  • Salvatore Jensen