Russian forces launched 675 drones and 56 missiles at Ukraine in a massive overnight attack, Kyiv's air force said on Thursday.
In a statement, it said air defenses had downed 652 drones and 41 missiles, and that 38 hits had been recorded across 24 locations. Damage from debris was reported at another 18 locations, including one structure that partially collapsed.
"People are trapped under the rubble," Tymur Tkachenko, head of the capital's military administration, wrote on Telegram. "Emergency services are on their way to the site."
Tkachenko said buildings had sustained damage in other widely separated city districts, including one where drone debris had fallen on the roof of a residential building.
Mayor Vitali Klitscho also reported damage to buildings throughout the capital, including debris that struck two buildings in a northern suburb, sparking a fire in a 12-story block of flats.
Unofficial Telegram channels posted videos of parts of apartment buildings ablaze.
There were no immediate reports of casualties.
Russian attacks target multiple regions
Ukraine's air force said Russian missiles had targeted other regions, including Kharkiv, Sumy, and Chernihiv in northern Ukraine and the central region of Poltava.
Russian drones and guided bombs had targeted other parts of the country, including eastern and southern regions.
The strikes also targeted additional civilian infrastructure, including ports in the southern Odesa region and railways, Deputy Prime Minister Oleksiy Kuleba said.
On Wednesday, Russia unleashed a daytime drone attack on the country, targeting critical infrastructure in western regions and killing at least six people, officials said.