Ukraine's president has said North Korean forces have returned to the front line in Russia's western Kursk region, after reports they had recently been withdrawn due to heavy casualties.

Ukrainian President Volodymyr Zelensky said during his Friday evening address: "New assaults took place in the areas of the Kursk operation—the Russian army with North Korean soldiers brought in again. A significant number of occupiers have been eliminated, we're talking hundreds of Russian and North Korean servicemen."

Ukrainian President Volodymyr Zelensky said Friday that North Korean troops were back on the front line in Russia's Kursk region, after reports Moscow had withdrawn them due to heavy losses.