Kyiv launched a shock incursion into Russia's Kursk border region on Aug 6, advancing kilometres into Russian territory and seizing dozens of settlements.
Units of the 'North' group of troops liberated 10 settlements within two days,' Russia's defence ministry said in a statement posted on its Telegram channel.
Two years ago a major Ukrainian counteroffensive got underway that saw the Armed Forces of Ukraine (AFU) simultaneously attack Russian positions in the Kharkiv, Donetsk and Luhansk regions, liberating large swathes of territory.
Moscow denies targeting civilians or civilian infrastructure in its invasion of Ukraine, although thousands of people have been killed in its attacks.