Officers responded at about 12:05 a.m. to a ShotSpotter activation in the 1700 block of Sunnydale Avenue and found a man lying between two buildings suffering from a gunshot wound to his upper body, police spokesman Officer Albie Esparza said.
The 23-year-old victim, whose name has not yet been released, was taken to San Francisco General Hospital where he succumbed to his injuries at about 3 a.m., Esparza said.
No arrests had been in the case as of this morning, and no suspect information was immediately available, he said.
Anyone with information about the case is encouraged to call the Police Department's homicide detail at (415) 553-1145. People wishing to remain anonymous can call the department's anonymous tip line at (415) 575-4444 or send a tip by text message to TIP411.