An armed man matching the description of a serial robber has hit a Fishers gas station yet again. Fishers Police were called to the Circle K at 96th Street and Allisonville Road around 4:30 a.m. Thursday on a report of an armed robbery. The clerk told police a masked man dressed head to toe in black showed a gun and demanded money. The robber got away with an unknown amount of cash and fled on foot. He was last seen running toward the Cedar Cove Apartments. Officers from four other departments helped set up a perimeter in the area, but only found the suspect's mask.