Officers were dispatched to the Shop n Save on East 14th Street in Des Moines for shots fired Thursday night.
It happened just after 7:00 p.m. Someone called 911 saying there had been a fight and one of the participants pulled out a gun and shot at the other person involved.
Police are not aware of any injuries.
Officers say no one on the scene was cooperative with authorities. Investigators are asking for security video from the gas station.
No arrests have been made in the case.