Ukraine’s military says it used high-precision U.S. glide bombs to strike Russia’s Kursk region, and that is has recaptured some territory in the eastern Ukrainian region of Kharkiv that has been under a Russian offensive since spring.

Ukraine’s Air Force Commander Lt. Gen. Mykola Oleschuk issued a video Thursday night purporting to show a Russian platoon base being hit in Kursk, where Ukrainian forces launched a surprise cross-border incursion on Aug. 6. He said the attack with GBU-39 bombs, which were supplied by the United States, resulted in Russian casualties and the destruction of equipment.