A homicide in Visitacion Valley on Thursday was the second fatal shooting in The City in less than 24 hours.

An 18-year-old described as a black man was found dead “outdoors on the ground” in the 1400 block of Visitacion Avenue around 12:03 p.m. Thursday, according to San Francisco police Sgt. Michael Andraychak. He died from his injuries after being taken to a hospital.

Andraychak said the killing was being treated as a homicide, but could not say whether it was gang-related.

The incident followed another fatal shooting that took place in the Richmond district Wednesday night.

Neighbors heard shots fired around 9 p.m. near 23rd Avenue and Anza Street, and arrived to find the victim, described by officers as a 42-year-old man, on the ground, according to police.

A possible suspect was seen leaving the scene in a Mercedes, police said. No arrests have been made, and the case is under investigation.