The latest strikes on Kyiv began around midnight local time as air raid sirens sounded across the city, followed by the impact of Russian missiles.
The strikes cut power to thousands of properties, plunging parts of the Kyiv region into darkness.
A day of mourning is to be observed on Friday.
At a local school in the Solomyanski disctrict, the windows were knocked out and its playing fields were left covered in debris.
A nearby storeroom was destroyed, exposing the basement. The BBC was told it was a laundry and boiler house supplying heating to the surrounding apartment blocks.
Ukraine’s deputy intelligence chief told the BBC this was the kind of attack Russia was planning ahead of the winter in order to make life difficult.
Anastasiia Kovtun’s flat was in a nine-storey building that was hit in the attack.
The primary school teacher said she felt like her “head was going to blow” when she heard the explosions in her area from the shelter.
“It’s so frightening to realise it’s your house, you never think you’re going to be next,” she told the BBC.
