Okinawa
Japan's Kyodo news agency and public broadcaster NHK reported on Monday that a U.S. F-15 fighter jet crashed into the sea off Okinawa in southern Japan.
The US forces in Japan will ground all CH-53E helicopters to confirm their safety after the same type of aircraft crash-landed near a USmilitary training area.
Japan said Monday the United States had returned a sliver of land at a controversial US air base on the southern island of Okinawa
