Russia launched missiles and drones at apartment buildings in Kyiv for the second time in a week Monday, killing at least 14 people just before a key NATO summit, authorities said.
President Volodymyr Zelenskyy urged the alliance to take "strong decisions" on boosting Ukraine's air defenses following the strike, which came just days after another Russian attack killed more than 30 people in Kyiv.
The European Union also said that Ukraine needs air defense reinforcements.
The morning strike punched a crater into a multi-storey apartment block in the Ukrainian capital, ripping its top floors into two.
More than 10 explosions were reported during a ballistic missile alert during the night, with flashes in the sky as the blasts rang out.
It was the second attack in a week in which Russia deployed the hard-to-intercept ballistic missiles – triggering Zelenskyy's desperate new appeal for allies to send advanced missiles for the U.S.-made Patriot air defense systems.
He is to discuss the war with U.S. President Donald Trump on the sidelines of the NATO summit in Ankara, which begins Tuesday.
"It is critically important that the world – first and foremost the United States and our European partners – come out of the NATO Summit in Ankara with strong decisions in support of our air defense, and thus the protection of ordinary people's lives," he said on social media.
At least 14 people were killed in Kyiv and the surrounding region, with around 60 more wounded, he said.
Russia fired 68 missiles and 351 attack drones, he added.
Officials in the Kyiv suburb of Vyshneve said they were evacuating residents due to the possibility of unexploded munitions in the debris.
Locals in the northern Podilsky district of the capital said their area had been targeted heavily in recent Russian strikes.
"At 1:30 a.m., a powerful hit occurred. A blast wave, all the windows blew out. And then it hit three more times," Oleksandr Bakhlukov, who lives in a nearby building, told Agence France-Presse (AFP).
"Glass was falling down. There wasn't a single pane of glass left in the apartment," the 68-year-old added.
Russia's Defense Ministry said it had carried out a "massive strike" using missiles and drones against what it described as "military-industrial enterprises," fuel and energy complex facilities in several Ukrainian regions.
Around 30 residential buildings in Kyiv were hit, with rescuers still sifting through the rubble hours after the attack, officials said.
Zelenskyy said Ukraine's army had shot down the Russian drones and cruise missiles, but had "insufficient supply of interceptor missiles" to stop the ballistic missiles.
European Commission President Ursula von der Leyen said the attack showed that Ukraine "urgently" needs more air defense and that this would be discussed at the NATO meeting.
Russia's army said its forces also shot down more than 500 Ukrainian drones overnight.
Moscow's Mayor Sergei Sobyanin said on state-backed Max that several waves of the drones were bound for the Russian capital.
Kyiv has increasingly targeted energy facilities inside Russia in recent weeks in an effort to weaken the Kremlin's war effort, triggering fuel shortages across the country.
Both sides had vowed fresh attacks after Russia struck apartment buildings in Kyiv last week, killing more than 30 people, including entire families.
U.S.-led attempts to broker an end to the more than four-year war have gone nowhere.
The White House said Trump would meet Zelenskyy Wednesday during the NATO summit in a big to invigorate diplomacy.
"The president's obviously getting together with him to talk about how we can end the war. That's been a priority of his for a long time," a senior U.S. official said, speaking on condition of anonymity.
The official said Trump would then "follow up" with Russian President Vladimir Putin.
The Kremlin chief has refused to back down on hardline territorial and political demands that Ukraine and its allies say amount to capitulation.
On the front, Moscow's army said last week it had captured the strategic eastern town of Kostyantynivka, though Zelenskyy said Ukrainian forces were still fighting for the stronghold.