SAN FRANCISCO (AP) — Authorities say a shooting at San Francisco UPS warehouse has killed three people as well as the shooter.

San Francisco police Sgt. Toney Chaplin says at a news conference that two others were wounded Wednesday. He says that the shooter shot himself, and police have not determined a motive.

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Auto shop owner Robert Kim said he heard about five to eight rapid gunshots. The next thing he knew, he said, “a mob of UPS drivers” was running down the street screaming “shooter, shooter.”

Police confirmed the shooting at the facility in the Potrero Hill neighborhood, about 2 ½ miles from downtown San Francisco.

Uniformed UPS employees were later led out in a line by officers next to a highway. They walked away calmly with emergency vehicles nearby and gathered nearby outside a restaurant.

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The shooting led to a massive police response and a shelter-in-place warning for the surrounding area.

It came the same day a gunman opened fire on Republican lawmakers at a congressional baseball practice, wounding U.S. Rep. Steve Scalise of Louisiana and several others.

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