LUGANSK, October 19. /TASS/. Fighters of Russia’s Battlegroup North seized about 100 square kilometers in the Sumy and Kharkov Regions over the past week, recording the largest territorial gains, military expert Andrey Marochko reported.

He noted that last week, Russian forces liberated 12 settlements: eight in the Kharkov Region, three in the Donetsk People’s Republic, and one in the Zaporozhye Region.

"The best results in liberating occupied territories over the past week were achieved by servicemen of the Battlegroup North, who took control of about 100 square km of territory in the Sumy and Kharkov Regions," he wrote on his VKontakte social media page after analyzing data released by the Russian Defense Ministry.