The San Bruno police tweeted that they are responding to an active shooter situation at YouTube’s headquarters on Tuesday, and urged others to stay away from the area.
At about 1 p.m. PT on Tuesday, Vadim Lavrusik, whose Twitter bio says he works in product at the company, tweeted, “Active shooter at YouTube HQ. Heard shots and saw people running while at my desk. Now barricaded inside a room with coworkers.”
A San Bruno police dispatcher confirmed to Variety shortly after that there was an “active investigation” taking place at YouTube’s headquarters, but would not divulge any further details. About 15 minutes after his initial tweet, Lavrusik tweeted, “Safe. Got evacuated it. Outside now.”
A YouTube spokesperson did not immediately respond to a request for comment.
ABC reported that the shooter is a white, adult female wearing a dark top and a headscarf. Further details about the shooter were not immediately available.
More social media reports emerged on Tuesday from the Google-owned company’s San Bruno headquarters, a suburb about 12 miles south of San Francisco. Todd Sherman, product manager at YouTube, tweeted that he was in a meeting when he began to see people running.
“At that point every new person I saw was a potential shooter,” he wrote. “Someone else said that the person shot out the back doors and then shot themselves.”
“I looked down and saw blood drips on the floor and stairs,” he added. “Peaked around for threats and then we headed downstairs and out the front.”
