Facebook Safety Check Activated, #PorteOuverte Trend After Paris Attacks

Emergency services attend the scene as victims lay on the pavement outside a Paris restaurant, Friday, Nov. 13, 2015. Police officials in France on Friday report multiple terror incidents, leaving many dead. It was unclear at this stage if the events are linked. AP Photo/Thibault Camus

Facebook activated its “Facebook Safety Check” for people with friends or family in Paris to help notify others about their safety.

It also allows one to mark someone else as safe.

“Quickly find and connect with friends in the area. Mark them safe if you know they’re OK,” it says.

Screenshot/Facebook