Despite the best efforts of a search team that on Sunday comprised five Brazilian ships, a French frigate and submarine, 12 Brazilian planes and two French ones, the answer could remain there.

• 尽管周日开始，由五艘巴西军舰，一艘法国快速军舰和潜水艇，12架巴西飞机和2架法国飞机组成的搜寻小组全力已赴，还是没能找到黑盒子。