Police were dispatched about 2:30 a.m. Monday to Big John's bar in the 12600 block of Briar Forest, Lt. Larry Crowson said at the scene. Officers found a man with a single gunshot wound; he was rushed to a hospital in critical condition but was expected to survive.

Crowson said officers talked with the shooter and witnesses who said a fight in the bar continued in the parking lot of strip-mall establishment whose website bills itself as "a true Texas icehouse."

The shooter said he fired in self-defense, the lieutenant said, adding that police would confer with prosecutors before deciding what, if any, charges should be filed.