On March 3, 2015 at approximately 6:45 pm The Lanark County Ontario Provincial Police (OPP) received a report of a robbery at the Red Apple store located in the Perth Mews Mall on Dufferin Street. A male suspect entered the store, approached the clerk and used a knife to threaten the clerk and demanded money. The male suspect took a small amount of cash from the register and left the store. The employee was not injured.The suspect is described as: male, approximately 6 feet, heavy set, wearing a balaclava, black or dark blue winter coat, dark blue sweat pants, and black cloth gloves. Members of the Lanark County OPP attended the scene and were assisted by the OPP Forensic Identification Services Unit (FISU). The Lanark County OPP Crime Unit is continuing the investigation. Anyone with Information is asked to contact Lanark County OPP at 1-888-310-1122 or Crime Stoppers at 1-800-222-TIPS (8477).