London Tube explosion: manhunt for Parson’s Green bomber
UK threat ‘severe’ after fifth terror attack in six months
London manhunt: armed police near Parsons Green after Friday’s explosion. Photograph: Dominic Lipinski/PA Wire
Britain last night raised its security threat level to critical, the highest possible, as the bomber who caused an explosion on a packed London commuter train remained at large. Prime Minister Theresa May said armed soldiers would take over some police duties as security chiefs concluded that another attack may be imminent.