HOUSTON – Road rage could be to blame for a shooting that happened outside a Fiesta grocery store in the Mission Bend area.

Investigators said there was a dispute between two drivers when one tried to back his car into the other.

Police said a man pulled out his gun and shot the driver of the car in front of him.

The driver was hit in the shoulder and is expected to be OK.

The shooter is in custody. It's unclear at this time what charges, if any, he may face.

Their identities have not been released.