Hundreds of people rushed to evacuate the California headquarters of YouTube after a shooter opened fire, leaving at least three people injured and one woman — the suspected shooter — dead, police said.
Officers could be seen in video patting down people as they left from the San Bruno base of the video-streaming giant, which sits in Silicon Valley at the heart of America's premier tech hub.
The San Francisco General Hospital has taken in an unknown number of patients from the shooting incident, according to local news station KCBS.
Spokesman Brent Andrew said a 36-year-old man was in critical condition, a 32-year-old woman was in serious condition, and a 27-year-old woman was in fair condition.
"Was just briefed on the shooting at YouTube's HQ in San Bruno, California," Donald Trump tweeted after the shooting.
"Our thoughts and prayers are with everybody involved. Thank you to our phenomenal Law Enforcement Officers and First Responders that are currently on the scene."
Employees in the headquarters tweeted about the shooting soon after it started, describing a chaotic scene in which the tech workers attempted to blockade themselves inside of rooms for safety.
Read below for coverage of the incident as it unfolded.
Thank you for joining us for live coverage of ongoing developments at YouTube HQ, where police have confirmed an active shooter.
At least two hospitals have confirmed that they have received patients from the shooting at YouTube HQ.
Meanwhile, people at the scene have described chaos in the buildings. One individual said he looked down and saw blood on the ground.
A software engineer who works at YouTube HQ named Sepand Parhami has told The Independent's San Francisco correspondent, Jeremy B White, that he heard a series of pops and then "everyone started scrambling".
He then said he saw blood on the stairs inside.
"It was kind of a blur," he said.
San Bruno police say that they encountered four people with gunshot wounds in or near YouTube HQ. One of those individuals, who police believe was the shooter, had a self-inflicted wound and was dead.
Chief Ed Barberini told reporters during a press conference that they were not sure of the extent of the other victims' injuries, and that the investigation is ongoing.
The individual with a self-inflicted wound was a female, he said.
Here's the press conference with San Bruno Police Chief Ed Barberini following the shooting at YouTube HQ.
Here's our latest report on the shooting at YouTube HQ, where three people have been reported injured, and where one woman is reportedly dead from a self-inflicted wound.
President Donald Trump has been briefed on the incident at YouTube HQ, praising local law enforcement for their response to the incident.
The FBI has said that the San Bruno Police Department is currently in charge of the shooting investigation, suggesting that the shooting is not currently being considered a terrorist attack.
A production manager at YouTube has tweeted that he saw blood when he was evacuating the site, and that the initial rumblings of people rushing to leave felt like an earthquake before he was told it was an active shooter.
"At that point every new person I saw was a potential shooter. Someone else said that the person shot out the back doors and then shot themselves," Todd Sherman, the production manager, wrote on Twitter.
He later updated his posts to say he was in an Uber going home.
'I saw blood drips on the floor and stairs': YouTube eyewitness on active shooter incidentThe IndependentA YouTube product manager has described the terrifying scene at a shooting at California headquarters of the social media company, which reportedly ended in dozens of people being rushed to the hospital.
Local news reports indicate that the victims at San Francisco General Hospital from the YouTube HQ shooting include one man and two women.
Two police officials told CNN that the suspected female shooter had known at least one of the victims. The suspect's name has not yet been released and it is unclear what motive the shooter may have had or if they were an employee of the company.
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