They will continue using an autonomous unmanned submarine to search the sea floor for wreckage using sonar until mid-August, after which the search will end, Mr.Bouillard said.

• 布依拉德表示，在8月中旬之前，搜救人员将继续通过一艘无人驾驶潜艇，用声纳在海床上搜寻失事飞机的残骸，此后搜寻工作将会终止。