ATLANTA -- Homicide detectives are investigating after a man was shot following an argument ouside an Atlanta gas station.

According to Atlanta Police, an older man was hanging out in front of a shell gas station at the corner of Cascade Road at Herring Road SW when he got into an argument with another person.

A couple of women who witnessed the altercation told the cops that after the argument, the gunman pulled out a weapon and fired at the victim, who died at the scene.

The male suspect ran away from the scene and police are on the search for him. At this time, they don't have a description of the shooter.

The investigation is ongoing.

PHOTOS | From the scene