Facebook could limit who can stream a live video after a lone gunman used the social network this month to broadcast a deadly shooting at a New Zealand mosque.

The company's Chief Operating Officer Sheryl Sandberg said in a blog post Friday that Facebook is "exploring restrictions on who can go Live depending on factors such as prior Community Standard violations."

Facebook, which has rules barring terrorists from the platform, is facing mounting pressure to combat hate speech on its platform.

The company's live video feature has been used in the past to broadcast suicides, murders and violence.

Live video's dark side came back into the spotlight after March 15, when a gunman killed 50 people at two New Zealand mosques.

Facebook pulled down the gunman's live video of the shooting, but by then it had already spread to other social media sites and messaging boards.

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