On 6 December , she was involved in a collision in Halifax Harbour with a French munitions vessel , , laden with a full cargo of highly volatile explosives . The resultant fire aboard '' Mont Blanc '' caused the historic and catastrophic Halifax Explosion , which levelled the Richmond District in the North End of the city . Though '' Imo '' s superstructure was severely damaged by the blast , the ship was repaired and returned to service in 1918
Halifax Explosion
Halifax Explosion
SS Imo