A woman opened fire at the YouTube headquarters in San Bruno, Calif. Tuesday, wounding at least four people before shooting and killing herself, police said.
Several YouTube employees tweeted Tuesday afternoon about chaos erupting across the campus after workers heard gunshots and reports of an active attack.
“Active shooter at YouTube HQ. Heard shots and saw people running while at my desk. Now barricaded inside a room with coworkers,” product management employee Vadim Lavrusik tweeted.
Product manager Todd Sherman said he saw "blood drips on the floor and stairs" as he and his coworkers fled from a meeting and ran for safety.
Local and federal authorities swarmed the campus, which holds about 1,700 workers.
San Bruno Police Chief Ed Barberini told reporters that the shooter was found dead of a self-inflicted gunshot wound. Four other people were taken to area hospitals for treatment, and at least one is in critical condition.
The shooter was not identified and her motive for the attack is unknown.
Law enforcement sources told The Los Angeles Times that the shooting appears to be an instance of workplace or domestic violence, not terrorism.
Google, which owns YouTube, said in a statement that it is coordinating with authorities. YouTube issued no immediate comment on the shooting.
[Photo: Getty Images]