HMS Vanguard and Le Triomphant submarine collision HMS Vanguard and Le Triomphant submarine collision The submarines HMS "Vanguard" and "Triomphant" collided in the Atlantic Ocean in the night between 3–4 February 2009. Both are nuclear-powered ballistic missile submarines. The Royal Navy's and the French Navy's both sustained damage, but no injuries or radioactivity releases were reported. At the time of the collision, both vessels were submerged and, according to the UK Ministry of Defence, moving "at very low speed"; both are equipped with active and passive sonar, although only the latter is used on an operational patrol. HMS "Vanguard" was on a routine patrol in the Eastern
French submarine Curie (P67) French submarine Curie (P67) The French submarine "Curie was a British-built U class submarine, a member of the third group of that class to be built. Laid down as HMS "Vox for the Royal Navy she was transferred to the Free French Naval Forces on the day she was commissioned, where she served as "Sous-Marin Curie" from 1943–46, but retaining her pennant number of P67. During her absence a later long hull U class submarine Pennant number 73 took the name "Vox", serving in the Far East during 1945 and being scrapped on 1 May 1946. When P67 returned to