***We’ll update this post as we learn more.***

UPDATE 5:51pm

UPDATE 5:05pm – Local hospitals confirm they are treating multiple patients.

UPDATE 4:40pm – Todd Sherman, a product manager at YouTube, details his account about getting out of the building in a Twitter thread:

UPDATE 4:32pm – San Bruno PD tweets out a confirmation of an active shooting at the location of YouTube’s headquarters.

Aerial video from the scene:

UPDATE: 4:20pm- Business Insider has confirmed with San Bruno police that “police are responding to 9-1-1 calls of a shooting at 901 Cherry Ave,” the address of YouTube’s headquarters in San Bruno.


Tweets from people allegedly on the scene:

San Bruno PD tweet confirming police activity at the address of YouTube headquarters: