Thieves pried open the back door of a Mars store in the 6700 block of Chesapeake Center Drive sometime between Saturday and Monday, and stole two meat cutters worth $4,000, county police said.

A store employee told police the thieves apparently drove a vehicle to the loading dock, where they loaded the meat cutters.

Police said the thieves cut a lock off an old cooler. The door that was pried open was the only one that wasn't locked from the inside with a chain. An infrared device that could have detected movement in the store had been cut down, police said.