9:00 PM PT: The deceased shooter has been identified as Nasim Aghdam, who was actually a YouTube user and posted numerous videos ranting against the company for de-monetizing her videos and accusing them of censoring her content. Three YouTube employees were injured in the shooting before Aghdam killed herself.
2:38 PM PT: Police just gave a press conference and said 4 victims suffered gunshot injuries. They believe the female suspect took her own life with a gunshot wound to the chest and the others are being treated at local hospitals.
2:15 PM PT: It's being reported the female suspect with the gunshot wound to the chest has died.
2:07 PM PT: One female victim with a gunshot wound to the leg allegedly walked from YouTube HQ to a nearby Carl's Jr where she was given a tourniquet by quick-thinking employee.
1:40 PM PT: According to audio obtained by The Blast, emergency crews were tending to a female with a gunshot wound to the chest who is believed to be one of the suspects. The woman, who was wearing a white shirt, had a handgun near her. Officials say there could be one more shooter, described as a "white male."
The audio states that as many as 37 people needed to be "triaged."
There are multiple reports of an active shooter at the YouTube headquarters in San Bruno, California, and one alleged employee said he is "barricaded inside a room with coworkers."
Police tell The Blast they've received multiple emergency calls about an active shooter and officers are on scene at the HQ.
The Blast has obtained audio from when the incident was first reported, and officials say people were running out of the business and someone was seen with a "gun" and "came from the back patio."
Video taken during the incident appear to show police rush into the building with guns drawn.
Photos from the scene show people walking out of the building with their hands raised as cops surround the location.
According to the emergency audio, officials claim there are multiple "patients" inside. The exact severity of the injuries are currently unclear.
The Tweets from people near the campus started flooding in around 1 PM Tuesday afternoon.
One man said, "Active shooter at YouTube HQ. Heard shots and saw people running while at my desk. Now barricaded inside a room with coworkers."
Another person said employees started to evacuate because the fire alarm was going off, but then everyone started running when it was announced there was an active shooter.
This is a developing story ...