The Catterick Bridge Explosion occurred on 4 February 1944 in the railway sidings at Catterick Bridge station, on the Richmond Branch Line/Catterick Camp Railway in North Yorkshire, England. It killed twelve people and injured more than a hundred. The incorrect loading of explosives into railway wagons is believed to have been the cause, but because of wartime restrictions, reporting of the event was not as widespread as it would have been had the explosion occurred in peacetime.