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KYIV — Russia pounded Kyiv with a massive missile and drone attack that killed four people, authorities said Sunday, after President Vladimir Putin threatened retaliation for strikes in Russian-occupied eastern Ukraine.
Multiple rounds of loud explosions were heard in the Ukrainian capital throughout the early hours of the morning, AFP journalists reported, in a barrage the air force said involved 600 drones and 90 missiles.

Smoke rises above Kyiv during a Russian strike on the Ukrainian capital on May 24, 2026, amid the Russian invasion in Ukraine.
Kyiv Mayor Vitali Klitschko said two people had been killed in the capital and dozens wounded, while the head of the surrounding Kyiv region said two people had also been killed there.

UkA woman walks along a smoke-filled road beside heavily damaged buildings following Russian strikes in Kyiv on May 24, 2026, amid the Russian invasion of Ukraine.
Russia's foreign ministry said on Friday that those responsible would face "inevitable and severe punishment".
On Saturday, Zelensky warned that Ukraine was "seeing signs of preparation for a combined strike on Ukrainian territory, including Kyiv".
Similarly, the US embassy said it had "received information concerning a potentially significant air attack that may occur at any time over the next 24 hours".
Ukraine regularly targets Russian-controlled areas of the country with drones, arguing that the strikes are retaliation for Russian attacks.
Occupied territory
Russia's emergency ministry said on Saturday it had pulled two more bodies from the rubble of the dormitory in Starobilsk, taking the death toll to 18.
Video shared by the ministry showed dozens of rescuers sifting through what remained of a section of the five-storey building.
Most of those killed and missing were young women born between 2003 and 2008, according to a list of casualties published by the Moscow-backed governor of occupied Lugansk, Leonid Pasechnik.
Starobilsk lies about 65 kilometres (40 miles) from the front line in eastern Ukraine. It was captured by Russian forces in the early months of the offensive in 2022.
Kyiv has recently expanded its drone capabilities and stepped up strikes on undisputed Russian territory, including residential areas and oil export infrastructure.
Moscow has hit Ukraine almost daily with barrages of missiles and drones since launching its full-scale invasion of the country in 2022, also hitting infrastructure and causing civilian deaths. It denies targeting civilians.
US-led efforts to negotiate an end to more than four years of war have slowed in recent months, with Washington's attention diverted towards its conflict in the Middle East.