Overview

• Local authorities say a counter-sabotage sweep is underway in Kupiansk with multiple Russian operatives captured and pipeline branches destroyed or flooded while heavy shelling devastates the city and evacuations continue under fire.
• Ukraine’s 10th Army Corps reports Russian forces massed near Radkivka and Holubivka, with attempts to cross the Oskil River by boat mostly destroyed and small assault groups often moving in civilian attire to infiltrate.
• Major Yurii Fedorenko says Russian troops do not control any Kupiansk districts as Ukrainian units hunt sabotage groups in forests, residential areas, and on the outskirts.
• Commander-in-Chief Oleksandr Syrskyi reports advances of 3–7 km near Dobropillia and Pokrovsk with about 160 sq km retaken and more territory cleared of reconnaissance groups, citing heavy Russian losses and growing numbers of prisoners.
• Ukraine’s General Staff logged 124 combat clashes on Sept. 19, including 55 airstrikes, 2,032 kamikaze drones, and 3,475 artillery and rocket strikes, while BBC News Ukraine reports that ex-Ukrainian officer Serhii Storozhenko leads Russia’s 6th Combined Arms Army in the Kupiansk effort; several battlefield claims remain hard to independently verify.