Police forensic investigators walk along a bridge linking Victoria Station with the Manchester Arena where the suspected terrorist attack at the end of a concert by US star Ariana Grande left 22 deadEmergency services at Manchester Arena after the explosion at the venueGreater Manchester Police chief constable Ian Hopkins speaks to the media where he said that the death toll from the Manchester bomb attack had risen to 22 with 59 injuredA young girl wearing a t-shirt of US singer Ariana Grande stands with women talking to police near Manchester ArenaPeople affected by the deadly terror attack look out from a hotel window in ManchesterThe first floral tributes to the victims of the terrorist attack are placed on the empty streets of Shudehill this morningPrime Minister Theresa May signs a book of condolence for the victims of the attack