Police investigating a robbery at the Gales Gas Bar on Stanley Ave in Niagara Falls.

It happened Monday, police say a man walked into the kiosk and demanded cash from the clerk.

The suspect is described as white, about 5'6", 180 lbs, wearing a black hooded sweatshirt adn blue jeans.

He fled with an undisclosed amount of money.

Anyone with information is asked to call police or Crimestoppers of Niagara at 1 800 222-8477 (TIPS) to leave an anonymous tip.