Kyiv awoke to widespread destruction after an overnight Russian aerial assault left at least 23 people dead, according to Ukrainian authorities. Four children were among those killed, while dozens of other residents were injured. The casualties were concentrated at an apartment building in Darnytskyi, a district on the capital's eastern side.

Emergency officials reported that 22 victims were recovered from the ruined five-storey block. The structure collapsed following a missile impact around 03:00, prompting a difficult search through smoking debris with excavators and rescue teams. Authorities gave the ages of three children who died as two, 14 and 17. Young people were also counted among the injured.

Ukraine's armed forces described a vast combined operation involving close to 600 unmanned aircraft alongside upwards of 30 cruise and ballistic missiles. They characterized it as the month's most extensive raid against Kyiv. Beyond the residential devastation, buildings used by the European Union delegation and the British Council suffered damage in the city centre. Neither organization reported fatalities at its premises. The British Council said visitors could not enter its badly affected office until further notice.

European Commission President Ursula von der Leyen said a pair of missiles came down within 50 metres of the EU mission, separated by about 20 seconds. Her comments framed the episode as evidence of continued Russian pressure on civilians and institutions. The European Union called in Russia's chargé d'affaires in Brussels, while Britain's Foreign Office summoned Ambassador Andrei Kelin.

The attack sharpened criticism of Moscow during a faltering diplomatic push. British Prime Minister Keir Starmer said President Vladimir Putin was damaging prospects for peace. EU foreign-policy chief Kaja Kallas argued that the operation signalled escalation rather than engagement. Ukrainian President Volodymyr Zelensky likewise presented the barrage as Moscow's response to appeals for a ceasefire, and urged additional sanctions. The Kremlin, meanwhile, maintained that Russia remained interested in negotiations.

Consequences extended outside the capital. Officials recorded outages affecting 60,000 electricity users in the Vinnytsia region, following drone strikes a day earlier that had interrupted supplies to more than 100,000 homes. Separately, Ukraine acknowledged that an attack on the reconnaissance vessel *Simferopol* killed one sailor and injured several. Russia's defence ministry said an unmanned speedboat hit the ship near the Danube's mouth; Ukraine did not identify the location.

Von der Leyen said work was under way on a nineteenth EU sanctions package and announced travel to seven member countries adjoining Russia or Belarus. US representatives were also scheduled to meet a Ukrainian delegation in New York to examine military, political and economic elements of possible security guarantees. Those initiatives continued as attempts to arrange direct negotiations between Zelensky and Putin remained stalled.