Overnight, Moscow's missile and drone strikes have led to power cuts in extensive areas of the capital city, the Ukrainian capital.
Nine people were injured while inhabitants in eastern districts were left without electricity and encountered disruption to water supplies, according to city officials.
Meanwhile, a young boy was fatally injured in a different aerial attack in the southeastern region in the southern area, based on information from area administrators.
Russian forces has increased strikes on energy facilities over the last fortnight, while officials has called for "real steps" from partner nations to exert influence on Russia.
"What's needed is not window dressing but firm measures - from the United States, European nations and the Group of Seven - in supplying air defence systems and enforcing sanctions," was stated in a public message.
Authorities reported that hundreds of unmanned aircraft and more than 30 projectiles targeted Ukraine's energy infrastructure, labeling such strikes as "premeditated" and against "essential services" as temperatures become colder.
Government representatives said Russia was "launching a major assault" and repair crews were striving to fix the damage.
A barrage of missiles struck power facilities and civilian homes in Kyiv.
Several of the people hurt in the strikes on the capital have been taken to hospital, according to local officials.
Local officials said the metropolitan region endured intense attacks throughout the evening. A seven-year-old child was killed and three other people were injured.
The assaults follow periods of aerial attacks in the region, parts of which are occupied by invading troops.
All of Ukraine is in a state of readiness for advanced weapon attacks, which are more difficult to spot.
Authorities told journalists that Russia was deliberately attempting to destroy the electrical infrastructure, with strikes already affecting fuel infrastructure.
He said utility staff and authorities were anticipating more assaults.
