A verbal dispute at a gas station in Mastic Beach turned violent when one of the men hit a customer in the head with a pot of hot coffee, Suffolk County police said.

The assault occurred at 10:25 p.m. on July 1 at the Track Gas Station at 310 Neighborhood Rd. and police said they need the public’s help in finding the three men who were arguing with the victim before the assault.

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Detectives asked anyone with information about the attack to call Crime Stoppers at 800-220-8477. All calls will be kept confidential, police said.

Police are offering a $5,000 reward for information that leads to an arrest.

The victim was treated at a hospital, police said.