YouTube headquarters in San Bruno, Calif. (Flickr Photo / jm3)

Early reports of an active shooter at YouTube’s headquarters in San Bruno, Calif. broke Tuesday afternoon. Employees and the San Bruno Police Department tweeted about the incident but few details are available yet. Read The San Francisco Chronicle’s live coverage here.

Update 1:40 p.m. Google released the following statement about the incident on Twitter.

Update 2:40 p.m. In a press conference, San Bruno Chief of Police Ed Barberini confirmed that four people on YouTube’s campus were transported to the hospital with gunshot wounds following the shooting around 12:46 p.m. Their condition is not clear, but several hospitals in the San Francisco Bay Area have reported that they have accepted patients from the shooting.

One woman is dead of what the police believe to be a self-inflicted gunshot wound, and the police also believe that person was the shooter, according to Chief Barberini.

Google also released an updated statement:

Update 4:45 p.m. Google CEO Sundar Pichai issued a statement:

Other tech leaders shared their thoughts on Twitter:

Developing story…

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