Russia said on Monday its forces had made important gains in eastern Ukraine while continuing to fend off a new Ukrainian offensive inside the Kursk region of western Russia, where a second day of fierce fighting was under way.

The Russian defense ministry said its forces had captured the town of Kurakhove, 32 kilometers south of Pokrovsk, a Ukrainian logistics hub toward which Russian forces have been advancing for months.

Ukrainian President Volodymyr Zelenskyy said Moscow had suffered big losses in five months of fighting in Russia's Kursk region with nearly 15,000 killed. He made no mention of Kurakhove.