The man was transported to a hospital, where he was pronounced dead later Saturday morning. Further details were not available.
Then, about 4 a.m., officers responding to a report of a shooting on Eddy Street in the Tenderloin neighborhood found another man who had been shot. This victim, who has not been identified, also was pronounced dead after being transported to a hospital.
Anyone with information about either incident is asked to call the San Francisco Police Department tip line at (415) 575-4444 or to text their tip to TIP411, beginning the message with SFPD.
People who call or text may remain anonymous.