Japanese Defense Minister Takeshi Iwaya and the commander of the US forces in Japan, Lieutenant General Jerry Martinez, have agreed to speed up talks on safety inspections of US helicopters.
Iwaya met Martinez on Thursday at the Defense Ministry in Tokyo. It was their first meeting since Iwaya's appointment in the recent cabinet reshuffle.
Police in Gunma Prefecture are trying to determine what caused last Friday's fatal helicopter crash. The government aircraft went down in a remote mountainous region, killing all 9 men on board.
About 30 investigators are combing the mountains in Nakanojo town to inspect the wreckage and look for the victims' belongings.
Officials in Gunma Prefecture have confirmed the deaths of 5 more crewmembers in a helicopter crash on a mountain north of Tokyo. The death toll has risen to 7.
The helicopter was carrying 9 people when it came down on Friday near the border with Nagano Prefecture. Rescuers initially found 8 people near the wreckage.