Multiple people shot in San Francisco at UPS facility

SAN FRANCISCO -- A source says at least two people have been killed and multiple people injured after a shooting at a UPS facility in the area of 17th Street and San Bruno in San Francisco, police say.

WATCH LIVE: ABC7 News coverage of multiple shooting at UPS facility in SF

Sources tell ABC7 News at least three people were shot at the facility and multiple victims have been transported to SF General. The source says the shooter then turned the gun on himself but is alive and that currently police are going through the building making sure there aren't any other accomplices.

A source says this was a single shooter who went into the building during a morning meeting and the suspect may be a disgruntled employee.

SFPD says they're currently conducting a search of the building.

UPS released a statement Wednesday saying, "UPS confirms there was an incident involving employees within the company's facility in San Francisco earlier this morning. Local law enforcement have control of the facility and are conducting an investigation. The company is cooperating with law enforcement. We cannot provide information as to the identity of persons involved at this time, pending the police investigation."

David Phister says he lives across the street and heard four shots fired at 9 a.m. When he ran to the window, he says there was a brief moment after the four shots and then he says he thinks he heard four more then saw a lot of people running out of the building.

Phister says the area where the shooting occurred was at garage doors at the corner of 17th and Utah, a part of the building for employees only.

San Francisco police are advising residents in the area to shelter in place.