KYIV, Ukraine (AP) — Ukraine’s top military commander says his forces now control 1,000 square kilometers (386 square miles) of Russia’s neighboring Kursk region, the first time a Ukrainian military official has publicly commented on the gains of the lightning incursion that has embarrassed the Kremlin.

Gen. Oleksandr Syrskyi made the statement in a video posted Monday to Ukrainian President Volodymyr Zelenskyy’s Telegram channel. In the video, he briefed the president on the front-line situation.

“The troops are fulfilling their tasks. Fighting continues actually along the entire front line. The situation is under our control,” Syrskyi said.

Russian forces are still scrambling to respond to the surprise Ukrainian attack after almost a week of fierce fighting.