Japan's Self-Defense Force says it has found what could be debris from a missing F35A fighter jet that's feared to have crashed into the sea.
Officials say the pilot was flying with three other planes of the same model on a training mission. They say there were no reports of problems before contact was lost.
The Self-Defense Forces and the coast guard have dispatched patrol aircraft and ships to search for the jet.
Thirteen F35As are currently deployed at Misawa Air Base in northern Japan. It's set to become the country's next-generation mainstay fighter.