During the night, Moscow's missile and drone strikes have resulted in power cuts in multiple districts of the capital city, Kyiv.
Several individuals were hurt while inhabitants in the city's east were left without electricity and encountered problems to drinking water, according to city officials.
Meanwhile, a minor was fatally injured in a different assault in the Zaporizhzhia region in the country's south-east, based on information from area administrators.
Russian forces has intensified assaults on power infrastructure over the last fortnight, while Ukrainian leadership has requested "concrete actions" from international partners to increase pressure on Moscow.
"The necessity is not window dressing but firm measures - from the United States, European nations and the Group of Seven - in providing air defence systems and enforcing sanctions," was stated in a social media post.
Authorities reported that 450 drones and several dozen projectiles targeted Ukraine's energy infrastructure, characterizing such strikes as "strategic and deliberate" and against "everything that sustains normal life" as the weather cools.
The energy minister said Russia was "launching a major assault" and repair crews were working to restore power.
A series of attacks damaged electrical systems and residential structures in the capital.
Five out of the nine people injured in the assaults on the capital have been transported for medical care, per statements from city authorities.
Regional authorities said the metropolitan region came under intense attacks during nighttime hours. A seven-year-old child lost their life and multiple civilians were injured.
The strikes succeed nights of bombing campaigns in the territory, sections of which remain under the control of Russian forces.
All of Ukraine is under warning for sophisticated projectile assaults, which are tougher to identify.
Authorities told journalists that Russia was intentionally trying to destroy the country's energy grid, with assaults already disrupting gas facilities.
Authorities confirmed energy workers and officials were bracing for further attacks.