Throughout the evening, Russian missile and drone strikes have led to power cuts in large parts of the capital city, Kyiv.
Nine people were hurt while residents in the city's east were experienced blackouts and dealt with interruptions to water supplies, per reports from municipal leaders.
Meanwhile, a seven-year-old child was killed in a different Russian drone strike in the Zaporizhzhia region in the country's south-east, based on information from regional authorities.
Moscow has increased attacks on electrical systems over recent weeks, while Ukrainian leadership has called for "substantial measures" from allies to increase pressure on Russia.
"What's needed is not symbolic gestures but strong steps - from the US, Europe and the G7 - in delivering defensive weapons and implementing sanctions," he wrote in a online statement.
Officials stated that hundreds of unmanned aircraft and over thirty projectiles targeted the country's power systems, labeling such attacks as "strategic and deliberate" and against "critical infrastructure" as winter approaches.
Energy officials said Moscow was "launching a major assault" and maintenance teams were striving to fix the damage.
A barrage of missiles damaged power facilities and residential structures in Kyiv.
Several of the people injured in the assaults on the city have been hospitalized, as confirmed by city authorities.
Area administrators said the urban area came under heavy assaults during nighttime hours. A minor died and several individuals were hurt.
The assaults come after evenings of aerial attacks in the territory, parts of which are currently controlled by Moscow's military.
The entire country is under warning for sophisticated projectile assaults, which are harder to detect.
Government officials told reporters that Russia was purposely seeking to destroy the electrical infrastructure, with assaults already affecting gas facilities.
He said technical personnel and officials were preparing for further attacks.