There are multiple reports of a shooting and/or active shooter situation at YouTube's headquarters in San Bruno, California on Tuesday afternoon.
Four patients are reportedly being treated at San Francisco General Hospital. One woman, believed to be the shooter, was found dead at the scene from a self-inflicted gunshot wound. A 32-year-old woman was listed in serious condition and a 27-year-old woman in fair condition.
The San Bruno Police Department arrived at the campus in the 900 block of Cherry Avenue near Bay Hill Drive around 12:48 p.m. after receiving multiple 911 calls about shots fired.
Employees recounted frantic scenes as they fled YouTube's headquarters near San Francisco, with one saying he saw blood on the floor as he escaped.
The police chief said the headquarters building was evacuated and detectives were making arrangements to talk to people who were witnesses to the incident.
Twitter user Will Hudson reports that he had been texting with a friend who was at YouTube HQ, who reported that the fire alarm went off and people were told to evacuate.More news: At least 10 killed as hotel building collapses in Indore
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After searching the building, a female suspected to be the shooter was located with what's believed to be a self-inflicted gunshot wound.
Google, which owns the online video website, posted on Twitter that the company is coordinating with authorities.
"Was just briefed on the shooting at YouTube's headquarters in San Bruno, California", President Donald Trump tweeted.
Earlier Tuesday, a coroner's official said at least one person has been killed in the shooting at YouTube headquarters in San Bruno, California.
"'I have to get out of here, ' " the woman said the colleague said. "And people screaming", said the employee, who was in a building down the street. "I had my skateboard, I started skating towards the court yard area where I heard a commotion and I saw somebody screaming out, "come and get me, '" he said. Now barricaded inside a room with coworkers". Hudson said he's become accustomed to hearing about such violence but has never been so close to it before. San Bruno police said they could not provide more information.
President Trump tweeted his thoughts and prayers for the victims and thanked first responders. YouTube is located at 901 Cherry Ave.in San Bruno, located in Northern California's Silicon Valley. Officers patted down people grouped outside, and police vehicles surrounded the area. "Thank you to our phenomenal Law Enforcement Officers and First Responders that are now on the scene", President Trump tweeted.