'Hundreds of detectives investigating blast'
Media playback is unsupported on your device

Tube explosion: Hundreds of detectives working on blast probe

Assistant Commissioner Mark Rowley, from the Metropolitan Police, said the blast was caused by an improvised explosive device.

He confirmed 18 people had been taken to hospital by ambulance mostly suffering burns.

  • 15 Sep 2017
Go to next video: 'There was a fireball above my head'