The San Francisco Police Department is reportedly investigating a death case today, after a man was found dying on a San Francisco street. Update: An SFPD spokesperson has since confirmed that the death is being investigated as a homicide. According to Hoodline, the victim has been identified as 58-year-old Marco Diaz Perez.

NBC Bay Area reports that passing officers were flagged down at 9:15 Sunday morning by a witness who said that "there was someone with severe injuries on the ground" near the intersection of Mission Street and Excelsior Avenue.

The man, who police say did not appear to have been shot, was rushed to San Francisco General Hospital. He was pronounced dead when he arrived, NBC reports.

As always, anyone with any information on the slaying is urged to call SFPD's Anonymous Tip Line at 415-575-4444 or to text a tip to Tip411 with SFPD at the beginning of the message.

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