Something struck a group of Russian troops in Lgov, a town of 21,000 in western Russia’s Kursk Oblast, late Sunday or early Monday. “It’s terrible,” a bystander cried. “The guys are all in the bunker,” they added as the bunker burned.

Alexander Khinshtein, writing on the Telegram messaging app, said one person was injured in the latest attack in the region, where Ukrainian forces have seized a chunk of territory after launching an incursion in August.

Five months after their shock offensive into Russia, Ukrainian troops are bloodied and demoralised in the battle for Russia's Kursk region.View on euronews

Moscow has intensified its attacks on Ukrainian forces battling to hold an enclave in Russia's Kursk region and increased pressure in Ukraine's eastern Donetsk region, Ukraine's top army commander said on Tuesday.

Ukrainian forces are at risk of losing control over the territories gained in the Kursk region, potentially weakening the entire frontline. Ukraine has already lost 40 percent of the land they gained in Russia.

Ukrainian forces are at risk of losing control over the territories gained in the Kursk region, which could weaken the entire frontline. Ukraine has already lost 40 per cent of the land acquired in Russia.