One of the New Zealand attackers streamed live on Facebook as he murdered dozens of worshippers at a mosque.
The footage, lasting more than 16 minutes, was posted on a page belonging to Brenton Tarrant but was quickly deleted by Facebook.
The footage shows the man spending several minutes inside, reloading his rifle several times. At one point he leaves the mosque to fetch another weapon from his car, firing on people on the street before returning and systematically shooting into the bodies.
He then leaves, shooting dead another passerby as she pleads for help before driving off in his car, firing another gun through his window.
Police said they were working to have the footage removed from the internet.
Police are aware there is extremely distressing footage relating to the incident in Christchurch circulating online. We would strongly urge that the link not be shared. We are working to have any footage removed.
— New Zealand Police (@nzpolice) March 15, 2019
Facebook said they had removed the profiles concerned and were deleting any messages of support for the attacks
Police alerted us to a video on Facebook shortly after the livestream commenced and we quickly removed both the shooter’s Facebook and Instagram accounts and the video. We're also removing any praise or support for the crime and the shooter or shooters as soon as we’re aware.
— Facebook Newsroom (@fbnewsroom) March 15, 2019