MOST POPULAR: Video, stories and more
CRIME MAPS: Track crime in your neighborhood
SIGN-UP: Get breaking news sent to you from ABC7 News
The initial shootings were reported at about 11:55 p.m. in the 5000 block of Mission Street, Tomioka said.
Officers were called to the scene of what appeared to be some sort of hip-hop function, she said.
There was a huge group of people near the intersection of Mission Street and Geneva Avenue, according to Tomioka, who said a 19-year-old man was then shot by police near a Beacon gas station at the intersection.
The suspect and the two victims were all taken to San Francisco General Hospital with injuries that are not believed to be life-threatening, Tomioka said.
Today's latest headlines | ABC7 News on your phone
Follow us on Twitter | Fan us on Facebook | Get our free widget