Gimbert and Nightall were fully aware of the contents of the wagon which was on fire and displayed outstanding courage and resource in endeavouring to isolate it. When they discovered that the wagon was on fire they could easily have left the train and sought shelter, but realising that if they did not remove the burning vehicle the whole of the train, which consisted of 51 wagons of explosives, would have blown up, they risked their lives in order to minimise the effect of the fire.
At 8.30 am that morning, one fuze exploded, immediately detonating the whole tray. The girl working on that tray was killed outright and her body disintegrated; two girls standing behind her were partly shielded from the blast by her body, but both were seriously injured, one fatally. The factory was badly damaged: the roof was blown off, electric fittings were dangling precariously; and one of the walls was swaying in the breeze.