A 76-year-old man fatally shot a younger man Tuesday morning when an argument turned physical in the Bridgeport neighborhood, Chicago police said.

About 9:40 a.m., the older man got into an argument with a younger man in the 3100 block of South May Street and the argument turned into a fight, police said.

The older man, whom has a FOID card, discharged his weapon, striking the younger man in the head, and was pronounced dead at the scene. Police said the deceased man was 45 to 50 years of age.

The older man was taken to Jesse Brown VA Medical Center for an evaluation. He was listed in good condition, police said.

Detectives were investigating.