The Coast Guard received information about the crash around 2:47 p.m. local time (12:47 a.m. ET), said the spokesperson, adding the 10th Regional Coast Guard Headquarters has dispatched a patrol boat and aircraft to the crash area.
The Yakushima Airport Management Office in Kagoshima Prefecture received a call from the US military Wednesday afternoon requesting an emergency landing at Kagoshima Airport, a Kagoshima prefectural official told CNN.
In August this year, three US Marines were killed and several others seriously wounded after an Osprey crashed during military exercises in Australia. In 2022, five US Marines died after their MV-22B Osprey plane crashed during a training mission near Glamis, California.
Generally, Osprey is safe to fly, but the aircraft has had a history of mechanical and operational issues.