A British minister said Wednesday it was "irritating" that details about the Manchester concert bombing had been leaked to U.S. media before being released in Britain, saying she had spoken to USA authorities.
Police had earlier named British-born Salman Abedi, 22, as the perpetrator of the bombing at the Manchester Arena indoor venue at the end of a concert by USA pop singer Ariana Grande on Monday, attended by thousands of children and teenagers.
His 22 victims included an eight-year-old girl, several teenage girls, a 28-year-old man and a Polish couple who had come to collect their daughters. "That is what the investigation is focusing on", a source with knowledge of the probe told Reuters, on condition of anonymity.
A statement from Grande's management said: "Due to the tragic events in Manchester the Dangerous Woman tour with Ariana Grande has been suspended until we can further assess the situation and pay our proper respects to those lost".
French Interior Minister Gerard Collomb said British investigators had told French authorities Abedi had probably travelled to Syria as well.
British Home Secretary Amber Rudd said Abedi "likely" did not act alone in the strike at the close of an Ariana Grande concert Monday night and that he had been known to security forces "up to a point".
"We have evidence that he is involved in Daesh (ISIS) with his brother".
Abedi was named after armed officers carried out a raid on the red brick semi in south Manchester where he was registered as living. They provided no details on those held.
Muye Li, a 23-year-old student who lives on the third floor, said he heard an explosion as police stormed an apartment on his floor.
Ian Hopkins of the Greatest Manchester Police also did not correct or object to a question from a reporter on whether "the bomb factory" had been found, saying that extensive searches were ongoing. An initial deployment of 984 had been ordered, first in London and then elsewhere.
Soldiers were seen at the Houses of Parliament, Prime Minister Theresa May's Downing Street residence and at London police headquarters at New Scotland Yard.
The changing of the guard ceremony at Buckingham Palace was canceled Wednesday so police officers can be re-deployed, Britain's defense ministry said.
The Chelsea soccer team also announced it would cancel Sunday's victory parade in London that was to have celebrated the team's Premier League title win. Grande was scheduled to perform in London and across Europe through mid-June.
Hashim had been in contact with his brother and knew about the attack he was planning, Bin Salem said.
Health official Jon Rouse said, "Of those, approximately 20 are receiving critical care, that means very urgent care, at the present time".
Officials believe this will allow police to fight the threat of further extremist action against civilian targets, amid fears that another attack may be imminent.
A cafe owner who spoke to CNN said that the city's sense of community was helping people come together during the hard time.
France, which has repeatedly been hit by devastating militant attacks since 2015, extended emergency powers.
Abedi is believed to have died in the powerful blast outside an Ariana Grande concert in Manchester, though he has not yet been formally identified by the coroner, Manchester police said.