Soldiers are on Britain's streets to support armed officers after the terror threat level was raised to its highest level following the Manchester Arena suicide attack.

The military will guard key sites including Buckingham Palace, Downing Street, embassies and the Palace of Westminster.

It comes as the threat level was raised from severe to critical, meaning an attack may be imminent, after 22 people were killed and 119 injured in the bombing at the end of an Ariana Grande concert.

Thirteen victims have been identified so far, including a Polish couple and two mums collecting their daughters from the concert, and fans as young as eight.

The bomber has been named as 22-year-old Salman Abedi, as security services probe his links to a known ISIS recruiter and whether he was part of a terror network.

Police arrested three men in Manchester on Wednesday morning, bringing the total number of arrests to four. There have also been arrested abroad.

Our sister title the Manchester Evening News has set up a crowdfunding campaign to support the victims and their families which has raised more than £1million.