Police Respond To Active Shooter At YouTube Headquarters In California

(CBS SF/CBSNews) — Multiple people have been injured in an active shooting situation at YouTube headquarters in San Bruno Tuesday afternoon. The shooting appears to have happened in an outdoor cafe on the grounds of the facility.
Police were seen laying down evidence markers near the seating area of the cafe. Lines of employees were seen being led out of the building with their hands up.
CBS San Francisco reporter Andria Borba said at least two Homeland Security units were responding.