As they approached, an explosive was detonated from a distance.
Three of these had been detonated and the fourth, which failed to explode, was found to contain 100 lbs.
By remote control, they detonated that explosive of about 600 to 1,000 lbs and four gallant soldiers were done brutally to death.
Small charges of conventional explosives would be detonated elsewhere in the course of these experiments, but there would be no explosions on the site.
In other words, they must be detonated to cause an explosion.
The material had to be safely taken care of and detonated at a nearby quarry.
They will not be equipped with depth charges that are nuclear detonated.
Explosions have been detonated on three buses and at four tube stations.
