Overnight, Russian aerial assaults have resulted in power cuts in large parts of the capital city, Kyiv.
A number of civilians were wounded while local people in the city's east were left without electricity and dealt with interruptions to drinking water, per reports from city officials.
At the same time, a young boy was killed in a separate aerial attack in the Zaporizhzhia area in the country's south-east, as reported by regional authorities.
Russian forces has escalated assaults on energy facilities over the last fortnight, while Ukrainian leadership has demanded "real steps" from allies to exert influence on Moscow.
"What's needed is not superficial actions but firm measures - from the US, the EU and the G7 - in delivering protection systems and applying restrictions," was stated in a social media post.
Officials stated that 450 drones and more than 30 projectiles attacked the country's power systems, describing such strikes as "strategic and deliberate" and against "everything that sustains normal life" as temperatures become colder.
Energy officials said Russia was "conducting extensive attacks" and technical staff were working to fix the damage.
A series of attacks damaged electrical systems and residential structures in the capital.
Multiple people injured in the strikes on the capital have been taken to hospital, as confirmed by municipal representatives.
Area administrators said the city came under heavy assaults during nighttime hours. A young boy was killed and three other people were wounded.
The strikes succeed periods of bombing campaigns in the region, sections of which are currently controlled by Russian forces.
All of Ukraine is under warning for advanced weapon attacks, which are harder to spot.
National leaders told journalists that Moscow was deliberately attempting to destroy the country's energy grid, with attacks already affecting energy systems.
Officials stated utility staff and authorities were bracing for further attacks.
