A Russian air attack early on October 10 triggered a fire in a high-rise apartment building in central Kyiv and hit Ukrainian energy sites, officials said.
A drone set apartments on fire on the 6th and 7th floors of a high-rise block in a central district, said Tymur Tkachenko, head of Kyiv's military administration, adding that both drones and missiles had been deployed in the assault.
Videos and pictures posted online showed apartments burning and firefighters battling the blaze.
Kyiv Mayor Vitali Klitschko said 12 people had been injured, with eight of them taken to the hospital. He said there were power outages in the eastern districts of the city.
"The left bank of the capital is without electricity. There are also problems with water supply," Klitschko said on Telegram.
Ukrainian President Volodymyr Zelenskyy condemned what he called a “cynical and calculated attack,” stating that Russia had launched more than 450 drones and over 30 missiles across Ukraine.
Zelenskyy emphasized that it “civilian and energy infrastructure...is the main target of Russia’s strikes ahead of the heating season.”
He urged stronger international support, saying, “together, we can protect people from this terror. What’s needed is not window dressing but decisive action -- from the United States, Europe, and the G7 -- in delivering air defense systems and enforcing sanctions.”
The Ukrainian Air Force described the attack as "massive" as multiple explosions and the sound of drones were heard over the capital.
Ukrainian Energy Minister Svitlana Hrynchuk said the attack also hit Ukrainian energy targets.
"Energy experts are taking all necessary measures to minimize negative consequences," Hrynchuk wrote on Facebook.
"As soon as safety conditions allow, energy experts will begin clarifying the consequences of the attack and conducting restoration work."
In the southeastern city of Zaporizhzhya, drones struck several targets overnight, killing a 7-year-old child, the regional governor said.
"Tragic news. A 7-year-old boy who was wounded in a nighttime Russian attack has died in hospital," Ivan Fedorov said on Telegram.
Fedorov said earlier that the drone strike triggered at least one fire in a dwelling.