( CNN ) -- No one was seriously injured when a U.S. Marine helicopter crashed into the Arabian Sea Monday following training exercises in Djibouti , the U.S. Navy said . All 25 military members , 17 marines and eight sailors , aboard the Super Stallion chopper were safely recovered from the Gulf of Aden and taken aboard the amphibious transport dock USS Mesa Verde , according a Navy statement . The helicopter was part of the 22nd Marine Expeditionary Unit and was attempting to land on the Mesa Verde when the accident occurred , the Navy said . `` The crash was not a result of hostile activity . '' `` The aircraft was transferring the Marines and Sailors back to USS Mesa Verde from training ashore in nearby Djibouti . '' Both the Navy and the Marines are investigating the accident .
No serious injuries reported after military helicopter crash in Arabian Sea . All 25 sailors and marines rescued from Gulf of Aden . Navy says no `` hostile activity '' was involved in the crash .