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The videos will also be shared with the Home Office so that they can be passed on to other tech firms.

The Metropolitan Police is releasing firearms training videos as part of efforts to prevent the live-streaming of terrorist attacks.

The force is sharing the footage with Facebook to help develop detection technology of shooting online.

The hope is that the police can then be notified about an attack early to prevent the broadcast.

Commander Richard Smith, head of the Metropolitan Police’s Counter Terrorism Command, said: “Facebook reached out to the Met as we have worked with them on numerous occasions before to remove online terrorist propaganda.

“The live-streaming of terrorist attacks is an incredibly distressing method of spreading toxic propaganda, so I am encouraged by Facebook’s efforts to prevent such broadcasts. Stopping this kind of material being published will potentially prevent the radicalisation of some vulnerable adults and children.

“The footage we are capturing shows our highly-skilled firearms officers training to respond with the utmost expertise to a wide range of scenarios including the kind of attacks we want to stop terrorists broadcasting.”

Facebook faced criticism in March after the gunman of the Christchurch mosque shootings in New Zealand, which left 51 dead, live-streamed the attack on its platform.

Erin Saltman, counter terrorism policy manager, Facebook, said: “Violent extremist and hate based content has no place on our platforms and in the last two years, we have removed 26 million pieces of content from global terrorist groups.

“The footage from this partnership with the Met Police will improve our artificial intelligence technology, helping us more quickly identify and remove dangerous content.

“Crucially, we will make this technology available to the wider tech industry so collectively, we can prevent the spread of harmful content.”