The incident happened at a Bank of America on Post Avenue in Westbury just before 2 p.m. Friday, August 24.
Police say the Hispanic suspect entered the bank, displayed a black handgun, threatened the use of a bomb and demanded money.
The teller complied, and the suspect exited the bank with an undetermined amount of U.S. currency onto Post Avenue, fleeing in an unknown direction.
Ten employees and five customers were in the bank at the time of the robbery.
No injuries were reported.
Detectives ask anyone with information regarding this crime to contact Nassau County Crime Stoppers at 1-800-244-TIPS. All callers will remain anonymous.
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