Russia and Ukraine are disputing what caused a huge explosion on Russia’s flagship, the Moskva, in the Black Sea.
What isn’t in dispute is that it is one of the largest ships lost in combat since World War Two.
Russia has said the flagship in the Black Sea is still afloat but has admitted that it has been seriously damaged.
The Ukrainian authorities in Odessa said the cruiser was hit by its forces’ missiles causing ammunition onboard to explode.