Police arrived to the scene on the 2900 block of 16th Street about 9:49 p.m. and found an unresponsive male, police Officer Albie Esparza said in a statement.
Medics responded and pronounced the 57-year-old victim deceased at the scene. Police reported early Tuesday that the victim had been stabbed.
The victim's identity is being withheld pending family notification, according to the Medical Examiner’s Office.
The homicide investigation is ongoing, Esparza said, and anyone with information on this incident is encouraged to call (415) 575-4444 or text TIP411 with “SFPD” at the beginning of the message.
The incident marks the 12th homicide in The City this year.