The incident happened in Franklin Square at around 6:15 a.m. Friday, Feb. 24.
The man entered the BP gas station located at 740 Hempstead Turnpike, pointed a small black firearm at the sales clerk, and demanded money from the register, Nassau County Police said.
The man then jumped behind the counter removing an unknown amount of US currency and multiple cartons of cigarettes before fleeing in an unknown direction.
The suspect is described as being around 5-foot-8 or 5-foot-9 with a slim build. He was last seen wearing a camo jacket, black ski mask, and black gloves.
Detectives request that anyone with information on the incident contact the Nassau County Crime Stoppers at 1-800-244-TIPS or 911. All callers will remain anonymous.
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