Cadillac police are trying to find the person who robbed a gas station at knife-point. They say a man walked in wearing a bandana over his face, demanded money from the register, then ran.

It happened around 8:00 Sunday night at the Clark Station on M-115.

He's described as a white man around 20 years old, about 5 feet 8 inches tall, medium build with dirty blond hair. He was wearing a dark coat, baggy jeans and a black knit hat.

If you have any information, call police or silent observer.