PARMA, Ohio -- Police are looking for an armed robber believed to have targeted three Parma businesses since Thursday.

Police said Franklin Radio on State Road was robbed Thursday, Advance America on Broadview Road on Friday and a State Road Marathon station was robbed on Monday.

The robber is described as a white man about 5 feet 8 inches tall and 160 to 180 pounds with a salt-and-pepper beard.

In each case, the robber brandished a handgun and demanded money. The robber was also covering his face with a mask or bandana and wore a dark hooded sweatshirt.

It is believed the same person may also have been involved in the robbery of a Middleburg Heights check-cashing business.

Anyone with information should call Parma police at 440-887-7340.