An off-duty police officer said he shot at a vehicle early Sunday morning.

Houston police said the officer was leaving an approved extra security job when he noticed some men that he had asked to leave the club earlier waiting in the parking lot.

Police said as that officer was leaving, the men got into a dark colored SUV and followed him.

The officer said the men then pulled up next to him and one of them displayed a weapon.

He said that's when he fired his weapon.

No one was believed to be hit by the shots, but the window in the vehicle was damaged.

The the other men drove away the scene.

Houston police are investigating.