There was an early morning robbery at the Canadian Tire Gas Bar on Regent Street in Sudbury, according to the Greater Sudbury Police Service.
Police staff sergeant Jack Sivazlian says early Sunday morning an unknown man entered the gas station and brandished a weapon and demanding money.
He adds the suspect fled the area on foot and police carried out a search in the immediate area.
Sivazlian says the suspect was wearing dark clothing and a mask.
Anyone with information is asked to contact police or Crimestoppers.