Nassau County police are investigating a bank robbery in Roslyn that occurred on Friday evening.

According to detectives, the male suspect entered the Citibank at 1075 Northern Blvd., produced what appeared to be a shotgun and announced a robbery to the bank employees.

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Five employees were working when the incident occurred, police said, but no injuries were reported.

The suspect, described as between 5-foot-8 and 5-foot-10, was wearing all dark clothing, a black hat, glasses and a fake wig and beard, police said.

The suspect fled on foot with an unknown amount of money, police said. No direction of travel was observed.

Detectives ask anyone with information about the robbery to contact Nassau County Crime Stoppers at 800-244-TIPS. All callers will remain anonymous.