1.   In fact, the firebomb went off in the car carrying the conductor.

2.   The police were not sure Thursday what caused the firebomb to go off prematurely, setting several passengers ablaze and sending hundreds scattering in terror.

3.   Forty-eight people were hurt when a homemade firebomb went off inside a subway car in Lower Manhattan.

4.   He was passing by the station when the firebomb went off Wednesday.

5.   Leary was critically burned when the firebomb accidentally went off in his hands Wednesday, said police spokesman John Miller.

6.   Overnight Tuesday, three firebombs went off in Baden-Wurttemberg, in southern Germany, all targetting Turkish property, police said.