An item reported that the explosion on board of the French battleship Jena was caused by spontaneous combustion of the gunpowder charge of a torpedo.(1)
Note
1. Or Iéna. Building ordered on 3 April 1897, laid down at Brest Arsenal, France on 15 January 1898, launched on 1 September 1898, completed in 14 April 1902, magazine exploded on 12 March 1907, decommissioned on 3 July 1907, sunk when used a target ship on 2 December 1909 and sold to be broken up in 1921.
Note
1. Or Iéna. Building ordered on 3 April 1897, laid down at Brest Arsenal, France on 15 January 1898, launched on 1 September 1898, completed in 14 April 1902, magazine exploded on 12 March 1907, decommissioned on 3 July 1907, sunk when used a target ship on 2 December 1909 and sold to be broken up in 1921.