SAN ANTONIO -- San Antonio police confirmed they are investigating a double shooting on the West Side of town.

The shooting was reported after 3 p.m. Friday in the area of South San Horatio and San Fernando Street.

According to police at the scene, several people in a van were driving in a neighborhood when the occupants got into a verbal altercation with a man who was outside his home. The argument escalated, and the man retrieved a gun from his home. A shootout then ensued. 

One of the van's occupants was killed by gunfire and another was injured. There was also a young boy inside the vehicle. He was uninjured, police said. 

Police are working to determine what sparked the incident.