Russian missile and drone strikes hit Kyiv overnight, killing at least 10 people and injuring about 30, according to diplomats on the ground. The barrage shattered residential areas and severely damaged the European Union’s delegation building as well as the British Council offices, in what Ukrainian and EU officials called a deliberate attack on diplomatic premises in breach of the Vienna Convention. European Commission President Ursula von der Leyen said the assault showed the Kremlin would "stop at nothing" and pledged to tighten the bloc’s punitive measures. She announced work on a 19th sanctions package and on legal steps to channel frozen Russian assets toward Ukraine’s military needs and post-war reconstruction. Leaders across Europe echoed the condemnation. French President Emmanuel Macron denounced Russia’s "terror and barbarity," while UK Prime Minister Keir Starmer called the strikes “senseless” and summoned the Russian ambassador in London. Germany’s Foreign Minister Johann Wadephul and Chancellor Olaf Merz warned the attack would not go unanswered, and EU foreign-policy officials said the Russian envoy in Brussels will be summoned. At the United Nations, Secretary-General António Guterres condemned the targeting of civilians and diplomatic facilities as violations of international humanitarian law and renewed his call for an immediate, unconditional cease-fire that upholds Ukraine’s sovereignty.