The Manchester suicide bomber used videos from YouTube and other websites to help to build the device that killed 22 people, The Times has learnt.

Salman Abedi viewed clips on YouTube, Google’s video platform, about the manufacture of improvised explosive devices, it is understood. He downloaded material from other websites about the chemical compound used in the bomb detonated after a pop concert at Manchester Arena last month.

A few days after the terrorist attack in Manchester, in an open access to the social network Facebook and YouTube were step by step instructions on the manufacture of explosives based on acetone peroxide, the substance that Abedi used to commit the terrorist attack.

Tags: ; ;