Disaster struck New Jersey, USA on the 4th of October, 1918, when an explosion hit the T. A. Gillespie Company Shell Loading Plant. The First World War munitions plant, one of the largest in the world, was hit by a large explosion that started a fire and went on to trigger more explosions over the next two days.
The plant itself, as well as some three-hundred other buildings, were destroyed.
Because employment records were destroyed in the explosion the exact death toll is unclear, however it is believed to be around a hundred. Hundreds of other people were injured.
The disaster is generally believed to be an accident.
About a century later, the area is still affected by explosive substances.