>> The British Prime Minister warning Tuesday that after the worst terror attack to hit the UK in over a decade, more may be imminent. Officials in the UK raising the threat level from severe to critical, its highest designation, as police try to hunt down any possible associates of the Manchester suicide bomber.
Police naming 22 year old Salman Abedi as the man suspected behind Monday's terror attack, which killed 22 people. Prime Minister Teresa May, Tuesday, saying the possibility Abedi had accomplices looked increasingly likely.>> But the the work undertaken throughout the day has revealed that it is a possibility. We cannot ignore that there is a wider group of individuals linked to this attack.
>> Islamic State has claimed responsibility for the attack, though provided no evidence. And offered conflicting accounts on its platforms. Reuters Mark Hosenball has been speaking to sources in the US intelligence community.>> Well, the intelligence agencies are still looking into the background of this Salman Abedi. But at the moment they have reason to believe that he was born in England.
But his family recently were from Libya. And that at least fairly recently, like within the last few years, he had some Islamic connection with Libya. Or he may have traveled there, either on
] or with members of his family. But somehow he came under the influence of people connected with the Islamic State movement.
And somehow, I guess, was motivated or brainwashed by them into carrying out this suicide bombing.>> Police raided houses in Manchester, as officials tried to establish if the bomber was acting alone or working with a wider network. The attacker set off his bomb as crowds streamed out of the Manchester Arena after an Ariana Grande concert.
Under the critical threat level, Britain's military forces will be deployed to boost security. And will be positioned at key sites to free up police for patrols.