Facebook on Friday said it removed both the shooters' accounts and a live streaming video after they opened fire at two mosques in New Zealand's Christchurch city, causing "multiple fatalities".
At least 40 people were killed and several injured when a gunman opened fire at two crowded mosques during afternoon prayers in New Zealand's Christchurch.
"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," said Mia Garlick from Facebook's New Zealand office in a statement.
"We will continue working directly with New Zealand Police as their response and investigation continues," Facebook added.
The New Zealand police arrested four people, three men and a woman, after the shooting.
The shootings took place at the Al Noor Mosque and Linwood Masjid, The New Zealand Herald reported.
(With inputs from Agencies)