Police are searching for an armed robber who held up a Sunoco gas station early Friday in Valley Stream.

Nassau County police said the robbery occurred at the station on West Merrick Road at 2:05 a.m. No one was injured.

According to detectives, the robber entered the station, displayed a black handgun and ordered the 58-year-old cashier to hand over money. It was not clear how much was taken.

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Once the cashier complied with the demand, police said, the robber fled on foot westbound on West Merrick Road.

Police are asking anyone with information about the robbery to call Crime Stoppers at 800-244-TIPS. All calls will remain confidential.