PLATTENVILLE — The Assumption Parish Sheriff’s Office is offering up to a $1,000 reward for information that leads to the arrest of the gunmen involved in a shootout late last week at a convenience store.

A 36-year-old bystander was injured during the shootout in the parking lot of the store known as the Jubilee at La. 308 and La. 70 Spur shortly before 11:30 p.m. Friday, deputies said in a news release Monday.

The shots grazed the man’s hand and abdomen and hit his buttocks, deputies said. Three parked vehicles were also hit by stray bullets, deputies said.

Sheriff Mike Waguespack said Monday it appears the dispute was between groups from Paincourtville and Labadieville.

He said 10 spent casings found at the scene — from a rifle and a pistol — indicate at least two shooters were involved.

Waguespack said a convenience store employee turned out the lights to the canopy over the fuel pumps shortly before the shooting occurred, making identification of those involved difficult.

He said the employee was trying to disperse the crowd when it appeared a fight was about to occur.