Russian overnight strikes completely destroyed Trypilska thermal power plant outside Ukraine's capital Kyiv, Interfax-Ukraine news agency quoted a senior company official as saying.
Russia staged a major missile and drone strike on Ukrainian energy infrastructure early on Thursday, damaging substations and power facilities in five regions and causing emergency power cuts for at least 200,000 people, Kyiv officials said.
Ukraine's air force commander said air defenses took down 18 of the incoming missiles and 39 drones. The attack used 82 missiles and drones in total, the military said.
Meanwhile, a Russian missile attack on Ukraine's southern city of Mykolaiv on Thursday killed at least four people and injured five more, officials said.
"The enemy continues ballistic strikes on the south of Ukraine. Insidiously struck Mykolaiv in the middle of the day," southern military command said on Telegram.
Private houses, cars and industrial facilities were damaged, it added.