NATO secretary-general Jens Stoltenberg has warned against underestimating Russia's determination to continue the war. The EU has delivered 300,000 of its promised 1 million shells to Ukraine, with calls for closer alignment of Ukrainian and NATO arms production. Ukraine reported killing five high-ranking Russian officials in an air strike, and claimed that Russian casualties have reached 327,580. Ukrainian air defences successfully intercepted 21 Iranian-made Shahed drones heading towards a region where an airbase is located. Meanwhile, Russia escalated attacks in the Donetsk region, intensifying artillery fire, airstrikes, and ground infantry attacks. British intelligence indicated the potential use of 500kg cluster bombs. Russia also claimed control of the village of Khromove, near the city of Bakhmut.