Police are investigating reports of gunshots near YouTube's office in San Bruno, California, according to social media accounts.
Local police have also issued a warning for bystanders to stay out of the area.
It appears as though emergency teams have begun an evacuation of the facility, including YouTube Live product team member, Vadim Lavrusik, who was among the first to report the incident on Twitter.
Google has thus far only confirmed that it is “coordinating with authorities,” promising further updates as information becomes available.