Overnight, Russian missile and drone strikes have led to blackouts in large parts of the capital city, Kyiv.
Nine people were injured while residents in the city's east were plunged into darkness and faced disruption to water supplies, as stated by city officials.
Simultaneously, a minor was lost their life in a separate aerial attack in the Zaporizhzhia area in the country's south-east, according to local officials.
Moscow has increased attacks on electrical systems over the past few days, while Ukrainian leadership has requested "real steps" from partner nations to increase pressure on Russia.
"The necessity is not symbolic gestures but decisive action - from the US, Europe and the G7 - in providing defensive weapons and enforcing restrictions," he wrote in a social media post.
He said that 450 drones and more than 30 projectiles struck Ukraine's energy infrastructure, characterizing such strikes as "cynical and calculated" and against "everything that sustains normal life" as the weather cools.
Energy officials said Moscow was "conducting extensive attacks" and maintenance teams were striving to fix the damage.
A barrage of missiles hit electrical systems and civilian homes in the capital.
Five out of the nine people wounded in the attacks on the city have been taken to hospital, as confirmed by municipal representatives.
Local officials said the urban area experienced significant strikes throughout the evening. A young boy was killed and multiple civilians were hurt.
The assaults come after evenings of aerial attacks in the territory, portions of which are currently controlled by Russian forces.
The whole nation is under warning for advanced weapon attacks, which are harder to detect.
Government officials told reporters that Moscow was deliberately attempting to destroy the country's energy grid, with assaults already affecting fuel infrastructure.
He said energy workers and government agencies were preparing for more assaults.