
Police respond to YouTube headquarters in San Bruno, California, after gunshots were reported there on Tuesday, April 3. At least three people were injured in a shooting, according to San Bruno Police Chief Ed Barberini, and the suspected shooter was found dead. Barberini said the dead woman appeared to take her own life but the investigation was just beginning.

Police walk outside the YouTube building. YouTube, which was founded in February 2005, quickly became the most well-known of several online video sites.

Workers walk down a street near the YouTube complex.

Burlingame Police Chief Eric Wollman hands a dog named Kimba to a man who didn't give his name but said he worked for YouTube.

People gather outside the building. One YouTube employee said people were trying to get out of the building "as fast as they could."

Overhead video from CNN affiliate KGO showed a heavy police presence. People gathered outside, and one by one they were were frisked and patted down by officers. Several roadways near the building were closed to traffic.

Officers run toward the building after the shooting.

The city of San Bruno received multiple 911 calls from people reporting shots fired, City Manager Connie Jackson told CNN.