Ukraine’s President, Volodymyr Zelensky, says forces have seized even more territory from Russia as they continue their counter-offensive.
President Zelensky said soldiers have now retaken more than 2,317 Square miles from Russian control in September, in the east and the south.
The BBC said it cannot verify these figures.
Moscow describes its troop withdrawal from the region in recent days as a “regrouping” with the aim of focusing on the Luhansk and Donetsk regions in Ukraine’s east.
Speaking later on Monday, US Secretary of State, Antony Blinken, said Ukrainian forces had made “significant progress” in their counter-offensive.
However, they added it was too early to predict the outcome.
Russian President Vladimir Putin ordered a full-scale invasion of Ukraine on February 24th this year.