Updated at 9:23 p.m.
At least four people were taken to local hospitals for treatment after a suspected shooter opened fire at YouTube headquarters Tuesday afternoon before taking her own life, police said Tuesday.
San Bruno Police Chief Ed Barberini confirmed Tuesday during a press conference at least four people were injured — three suffered gunshot wounds and another an ankle injury — and one person was dead. The deceased person is believed to be the shooter and may have died from a self-inflicted gun shot.
Barberini also confirmed that the shooting suspect was a female.
The police chief said that the shooting took place at both YouTube headquarters and an adjacent business.
“It was very chaotic, as you can imagine. One person had a gunshot wound as we arrived. Several minutes later, while conducting a search of the premises, officers located a second individual with a gunshot wound that appears — may have been self-inflicted,” he said. “We are still working on confirming that. Two additional victims were located several minutes later at an adjacent business.”
He later said, “We have four victims who have been transported for gunshot-related injuries and one subject who’s deceased inside the building with a self-inflicted wound.”
One YouTube employee tweeted he saw “blood drips on the floor and stairs.”
“We were sitting in a meeting, and then we heard people running because it was rumbling the floor,” said Todd Sherman, a project manager at YouTube. “After existing [sic] the room we still didn’t know what was going on but more people were running. Seemed serious and not like a drill.”
He added, “Someone else said that the person shot out the back doors and then shot themselves.”
In a statement, Google, the owner of YouTube, said it was aware of the incident.
“We are coordinating with authorities and will provide official information here from Google and YouTube as it becomes available,” the company said in a tweet.
Rep. Jackie Speier, D-Calif., who represents the district where the shooting took place, called for an end to gun violence and sent her prayers to all those impacted.
I am shocked and saddened to hear about another mass shooting, this one at YouTube in my District. I am following developments and am sending prayers to the victims and survivors. We must take action and #EndGunViolence.
— Jackie Speier (@RepSpeier) April 3, 2018
House Minority Leader Nancy Pelosi, D-Calif., who represents most of the San Franciso area, confirmed on Twitter she is monitoring the situation and thanked the first responders who were on scene.
My staff & I are closely following developments from the active shooter situation at YouTube HQ in San Bruno, CA. Thank you to our heroic first responders. Our Bay Area community – and all American communities – deserve real action to #EndGunViolence.
— Nancy Pelosi (@NancyPelosi) April 3, 2018
Sen. Dianne Feinstein, D-Calif., also tweeted, saying she is praying for the safety of everyone at YouTube.
My stomach sinks with yet another active shooter alert. I’m praying for the safety of everyone at YouTube headquarters.
— Sen Dianne Feinstein (@SenFeinstein) April 3, 2018
Check back to the Washington Examiner for more details on this incident as they become available.

