Six people have been charged in a scheme to steal mail containing an estimated $250,000 in cash at New York's Kennedy Airport.

Federal prosecutors in Brooklyn say three of the defendants were cargo handlers who targeted international flights transporting mail with foreign currency. They say the crew would use currency exchange businesses at Kennedy to convert their haul into U.S. dollars.

The case is the latest targeting rip-offs of cash and merchandise by cargo handlers at Kennedy and LaGuardia airports. There have been 12 other arrests.

Agents nabbed the latest defendants on Tuesday morning. The defendants are scheduled to appear in court later.