United Parcel Service (UPS) spokesman Steve Gaut told the AP an employee opened fire on colleagues before drivers were sent out for deliveries.
After the gunfire, auto shop owner Robert Kim said he saw "a mob of UPS drivers" running down the street screaming "shooter, shooter".More news: Police officer rescues dog that fell into Lake Michigan
San Francisco police responded to a shooting Wednesday at a UPS facility.
On Wednesday, the San Francisco Police Department issued a warning on Twitter for pedestrians to avoid the area near "17th & Vermont". Police recovered two firearms from the UPS facility, which employs 350 people.
In a statement, UPS said that local law enforcement had control of the facility and that the company was cooperating with the investigation.More news: UK Conservatives Set to Lose Seats in General Election
[Update: 10:18am] Police are moving from floor to floor inside the UPS building to secure the facility and evacuate employees.
The incident in San Francisco came hours after a gunman wielding a rifle opened fire on Republican US lawmakers practicing near Washington for a charity baseball game, wounding senior Republican leader Steve Scalise and several others before being fatally shot by police. Two other employees were shot in the shooting and five were hurt, police say.
San Francisco Chronicle reporter Evan Sernoffsky has reported that two people were killed at the scene and multiple victims have been transported to San Francisco General Hospital. He said he could not say how many patients were taken to the hospital or give their conditions. To assist our employees during this time, UPS has made professional counseling available.More news: Uber CEO to take leave, leadership team to run company
The building is located in the Potrero Hill, which is about 2 ½ miles from downtown San Francisco. Please continue to avoid the area and shelter in place until we have further information.