Throughout the evening, Russian missile and drone strikes have resulted in power cuts in extensive areas of Ukraine's capital, Kyiv.
A number of civilians were injured while residents in the city's east were plunged into darkness and dealt with interruptions to water systems, according to municipal leaders.
Meanwhile, a young boy was fatally injured in a separate aerial attack in the Zaporizhzhia area in the country's south-east, based on information from local officials.
Moscow has escalated attacks on electrical systems over the last fortnight, while officials has demanded "real steps" from partner nations to increase pressure on Russia.
"The necessity is not symbolic gestures but decisive action - from the America, Europe and the major economies - in supplying air defence systems and enforcing sanctions," he wrote in a online statement.
He said that numerous aerial vehicles and more than 30 missiles targeted the country's power systems, characterizing such assaults as "cynical and calculated" and against "everything that sustains normal life" as the weather cools.
Government representatives said Moscow was "inflicting a massive strike" and technical staff were working to restore power.
A wave of strikes hit electrical systems and apartment buildings in Kyiv.
Multiple people injured in the strikes on the capital have been taken to hospital, as confirmed by municipal representatives.
Area administrators said the urban area came under heavy assaults during nighttime hours. A seven-year-old child died and multiple civilians were wounded.
The attacks succeed evenings of air raids in the area, sections of which are occupied by invading troops.
All of Ukraine is on alert for advanced weapon attacks, which are harder to spot.
National leaders told the media that Russia was purposely seeking to damage the electrical infrastructure, with attacks already disrupting gas facilities.
Officials stated utility staff and authorities were preparing for further attacks.
