KsIEV (AFP) - Ukraine's interim President Oleksandr Turchynov said on Wednesday that Russia's hotly disputed annexation of Crimea in March had cost his country around US$100 billion (S$125 billion).

"The occupation of Crimea has caused losses of more than US$100 billion," he said at round-table talks on Ukraine's deepening crisis, charging that the Russian "aggression has not stopped" and has spread to the east, where Kiev is battling an armed insurgency.