MANAMA, Bahrain (AP) — A U.S. Marine who ejected from an airplane over the Persian Gulf is “presumed lost at sea,” the U.S. Navy said Thursday, marking the first reported casualty from the ongoing operation against the Islamic State group in Iraq and Syria.

The Marine and another crew member ejected from an MV-22 Osprey when the aircraft lost power and it appeared it might crash after takeoff Wednesday from the USS Makin Island, the Navy said. The pilot of the Osprey regained control of the aircraft and safely landed it aboard the Makin Island while rescuers recovered the other crew member from the water, the Navy said.