A huge manhunt is underway for those responsible for a terror attack that sparked panic on a packed London Tube train and left 29 people injured though, miraculously, no one was killed.
Isis has claimed responsibility for the attack, which happened during the rush hour commute when an improvised explosive device was detonated sending a “fireball” through the train carriage at Parsons Green station in south-west London.
Police reportedly know the identity of the suspected bomber and officers are “chasing down suspects”.
Late on Friday night, Theresa May raise the terror threat level to critical, the highest level, which means authorities think another attack may be “imminent”.
It is the fourth time the assessment has been placed at the highest level for the past 11 years.
Passengers, including children, fled the District Line train after the attack, which took place at around 8.20am.
A huge investigation led by the Metropolitan Police’s Counter Terrorism Command is now underway, with hundreds of detectives carrying out enquiries including examining CCTV, forensic work and speaking to eyewitnesses.