21.   Within minutes her plane exploded against a wall of the Pentagon.

22.   Police quoted witnesses as saying the plane exploded two times in the air and again when it hit the water, but confirmation will require a lengthy investigation.

23.   A Russian-built plane exploded in a fireball shortly after takeoff in northern Angola, civil aviation officials said Wednesday.

24.   A Russian-built plane exploded shortly after takeoff in northern Angola, civil aviation officials said Wednesday.

25.   A small plane exploded while flying over the Alps before dawn Thursday, witnesses said.

26.   A plane explodes over the Black Sea.

27.   A small plane exploded while flying over the Alps before dawn Thursday, and authorities launched a search for the wreckage in the rugged terrain, authorities said.

28.   A witness who asked not to be named said he saw the plane explode in the air.

29.   Airline officials said it was impossible for the plane to explode from an internal malfunction since the engines had not yet been started.

30.   Airline officials said it was unlikely the plane would have exploded from an internal malfunction if the engines had not yet been started.