Mounties in St. Albert, Alta., are asking for help from the public to find a man who robbed a gas station at gunpoint.

A man walked into a Petro Canada on Gate Avenue around 10 p.m. Friday night, and pointed a gun at the clerk, demanding money.

The suspect is described as a white man in his forties, five-foot-nine to five-foot-10, of a medium build, and was wearing a dark jacket, dark jeans and a green-knitted toque.