A man, armed with a silver handgun, robbed a Baldwin gas station Tuesday night, stealing cash before fleeing in a dark-colored sport utility vehicle, Nassau County police said.

The armed robbery took place at the OK Petroleum station on Grand Avenue at 8:34 p.m. Police said the robber approached the 64-year-old attendant, flashed the gun and demanded cash. He then fled west on Westminster Road, police said.

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It was not clear how much money was taken in the robbery. No one was injured.

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Police will look to see whether the robbery is linked to a series of other armed Nassau gas station robberies that took place in August -- stations robbed in Hempstead, Baldwin, Franklin Square, Valley Stream and Elmont. Police said that, at this time, there were no apparent links between this robbery and that string of robberies.

The suspect in those robberies used a black handgun. A sketch of that suspect was released on Tuesday.

Police are asking anyone with information regarding the robbery to call Crime Stoppers at 1-800-244-TIPS. All calls will remain confidential.