There is an active shooter at YouTube headquarters in San Bruno, California.

Police activities would indicate that they have control of the situation, but nothing is confirmed.

Police activity at 901 Cherry Ave, please stay out of the area. pic.twitter.com/H6iAj0g7ra

— San Bruno Police (@SanBrunoPolice) April 3, 2018

Witnesses near the scene reported hearing shots fired police activity and lockdown procedures.

Active shooter at YouTube HQ. Heard shots and saw people running while at my desk. Now barricaded inside a room with coworkers.

— Vadim Lavrusik (@Lavrusik) April 3, 2018

There is definitely some kind of police action / possible shooting at youtube in San Bruno. my brother just and others went running out of the building when hearing firecracker like sounds. 5 police cars came rushing to the scene…

— Mr Raised Brow (@MrRaisedBrow) April 3, 2018

Now at @YouTube possible #shooting pic.twitter.com/1nUJXyIDMp

— Nas (@Nasreen_and_I) April 3, 2018