21.   The first fire bomb failed to explode.

22.   The plane was ripped in half, killing the pilot instantly, but the bomb failed to detonate.

23.   They said there was apparently a small blast from a detonator, but the bomb failed to explode.

24.   Time after time, NATO bombs have failed to deter Serbs from attacking civilians and U.N. forces in Bosnia, and to halt the fighting.

25.   They said the small blast was apparently the detonator, but the bomb failed to explode.

26.   Two other bombs failed to explode, one in a public toilet in Paris and the other on a high-speed train track north of Lyon.

27.   In both cases, the bombs failed to explode and there were no casualties.

28.   A fourth attack failed when a bomb thrown into a police box in Yala failed to explode after landing in a pond.

29.   The petrol bomb failed to ignite.