Hagerstown police were investigating a Sunday night armed robbery at the 7-Eleven store at 1623 Dual Highway.
The robbery was reported at 9 p.m.. when a man who had been standing in the store for several minutes pulled a handgun and demanded cash and cigarettes from the cashier, police said. The man fled on foot with an undisclosed amount of cash, police said.
A K-9 team tracked the robber to an area nearby, but he was not found, police said. The case was remained under investigation Monday morning, police said.
The robber is described as black, about 6 feet, 1 inch tall, and was wearing a black zippered hooded sweatshirt with gray trim inside the hood, gray stripes on both elbows, a black winter hat and blue jeans.
Two banks and a pizza restaurant were robbed between Feb., 13 and Feb. 18 on the Dual Highway, according to earlier police reports. Police said Monday they do not rule out a connection, although there is no known connection at this time beyond the proximity of the businesses to each other.