Throughout the evening, Moscow's missile and drone strikes have caused power cuts in multiple districts of the capital city, Kyiv.
Nine people were injured while local people in eastern neighborhoods were experienced blackouts and dealt with interruptions to drinking water, per reports from local authorities.
Meanwhile, a minor was killed in a separate assault in the Zaporizhzhia region in the country's south-east, based on information from local officials.
Moscow has increased strikes on power infrastructure over recent weeks, while Ukrainian leadership has demanded "substantial measures" from allies to apply pressure on Russia.
"What's needed is not symbolic gestures but decisive action - from the America, Europe and the major economies - in delivering defensive weapons and enforcing penalties," he wrote in a public message.
Authorities reported that 450 drones and over thirty rockets attacked Ukraine's energy infrastructure, describing such strikes as "cynical and calculated" and against "critical infrastructure" as the weather cools.
Energy officials said Russia was "launching a major assault" and maintenance teams were laboring to restore power.
A wave of strikes hit power facilities and apartment buildings in the capital.
Five out of the nine people hurt in the attacks on the city have been hospitalized, according to local officials.
Area administrators said the metropolitan region experienced intense attacks during nighttime hours. A seven-year-old child lost their life and three other people were injured.
The strikes succeed evenings of bombing campaigns in the territory, portions of which are occupied by Russian forces.
All of Ukraine is on alert for hypersonic Kinzhal missile strikes, which are harder to spot.
Government officials told journalists that Russia was intentionally trying to destroy the electrical infrastructure, with attacks already affecting fuel infrastructure.
He said technical personnel and authorities were bracing for additional strikes.