A Westbury bank was robbed Friday afternoon by a man carrying a gun and claiming to have a bomb, according to the Nassau County Police Department.

The robber entered the Bank of America at 248 Post Ave. at 1:45 p.m., flashed a black handgun and threatened to detonate a bomb if he didn't get money. The teller handed over an undetermined amount of cash and the robber fled onto Post Avenue.

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Ten employees and five customers were in the bank at the time of the robbery; there were no reported injuries.

Detectives are asking anyone with information to call Nassau County Crime Stoppers at 800-244-8477. Calls are anonymous.