Moscow – Facebook on Monday turned on the safety check function following a plane crash near the Kyrgyz capital of Bishkek.
The function allows those in the vicinity of the crash to inform other people that they are safe.
The Boeing 747, operated by ACT Airlines, crashed into homes near Manas airport close to Bishkek, where it was supposed to make a stopover.
The Kyrgyz authorities said up to 37 people had died. The Kyrgyz president ordered a thorough probe into the tragedy, which has been reportedly blamed on dense fog.