Japan finds parts of crashed F35 fighter jet

Japan said Tuesday it had recovered some debris from a stealth fighter jet that crashed in April, but was still looking for the "all-important" memory that could offer clues into the accident.

Nearly a month after the high-tech F-35A plummeted into the sea off the coast of northeastern Japan, neither the pilot's body, nor the plane's fuselage have been found, said Defence Minister Takeshi Iwaya.

Experts say Japan and the US are keen to prevent debris from the plane being recovered by Russia or China, with Iwaya admitting last month there were "a significant amount of secrets that need to be protected" on board.

Some debris, including a part of the flight data recorder, were recovered "on or after May 3", Iwaya said, adding: "The Defence Ministry is studying (the parts), but at this point, the all-important memory (of the flight data recorder) has not been recovered."