LIVE COVERAGE: Active shooter reported at YouTube HQ in California; suspect dead

SAN BRUNO, Calif. – There are multiple reports of a shooting and/or active shooter situation at YouTube's headquarters in San Bruno, California on Tuesday afternoon.

MOST RECENT: Female shooter at YouTube HQ is dead, at least 3 others wounded

THE LATEST: Female suspect in shooting at YouTube headquarters dead

City Manager Connie Jackson says there have been multiple 911 calls reporting a shooting and that police and fire officials have responded. San Bruno Police confirmed they were responding to a police situation and to an active shooter. The ATF San Francisco Field Division is responding.

UPDATE: Female shooting suspect near YouTube headquarters is deceased at the scene, law enforcement sources tell NBC News.

A police update is expected around 5:30 p.m. EST - you can watch it live above.

San Bruno city manager tells NBC that there is no immediate threat at YouTube HQ.

A spokesperson for Zuckerberg San Francisco General Hospital said the hospital received patients from the incident, according to NBC Bay Area. 

The headquarters is located at 901 Cherry Avenue. TV helicopter video shows officers patting down people grouped outside a building and police vehicles surrounding the area. Officers patted down people grouped outside, and police vehicles surrounded the area.

Google on YouTube security incident: "We are coordinating with authorities and will provide official information here from Google and YouTube as it becomes available."

One YouTube employee told CNN people were trying to get out of the building "as fast as they could."
She said she was on a conference call and her boss, who heard shots, told her at least one person was shot on the patio where people eat.

Will Hudson said his friend who works for YouTube texted him about the shooter.

“I think there might be a shooter in my building,” read one text. “The fire alarm went off so we started to evacuate and then people (started) running saying there was a shooter.”

Hudson said his friend has made it safely back to San Francisco and is in contact with his family. Hudson said he’s become accustomed to hearing about such violence but has never been so close to it before.

“It just feels strange. It feels like it could really be anyone. That’s really the strangeness of it,” he said.

Witnesses on the scene reported bomb squad, SWAT teams and fire trucks at the scene.

Story is developing.