Authorities who have been to the crash site say the plane plunged nose first into a muddy mangrove forest about 20 kilometers from the coastal city of Douala.

• 去过出事地点的有关官员说，飞机在跌落时机头栽进了距离海滨城市杜阿拉机场20公里的一个红树林沼泽地。