A US Navy airman is missing after his helicopter went down in the Arabian Sea, with three others pulled from the water alive, the Navy said Wednesday.

The helicopter, which was assigned to the USS George H.W. Bush, is not believed to have been taken down by hostile action, the Navy said.

The U.S. Navy is searching for a crew member after a helicopter made an\u00a0\

The U.S. Navy is conducting rescue operations for a crew member aboard a helicopter that had to make an emergency landing in the Arabian Sea.