Two U.S. admirals — including the director of naval intelligence — are under investigation as part of a major bribery scandal involving a foreign defense contractor, navy officials announced Friday night.

Vice Adm. Ted "Twig" Branch, the service's top intelligence officer, and Rear Adm. Bruce Loveless, the navy's director of intelligence operations, were placed on leave Friday, and their access to classified material was suspended, the navy said in a statement.

Both admirals are being investigated for their ties to a Singapore-based defense contractor, Glenn Defense Marine Asia, whose chief executive was arrested in September on charges that he bribed other navy officers into giving him classified or privileged information in exchange for prostitutes and cash.