During the two-year war, Russia has carried out hundreds of airstrikes against Ukrainian energy facilities, causing significant damage and energy shortages.
Overnight, Russia fired a total of 100 missiles and drones at Ukraine, the Kyiv Independent reported.
The targets of the attack were energy sites across the country, Ukrainian officials said.
"The adversary fired 53 missiles of various types and 47 drones," the air force said, adding that it shot down 35 of the missiles and all but one of the drones.
Two thermal power plants were damaged in the attack, the DTEC operator said, without specifying where they were located.
"It was another extremely difficult night for the Ukrainian energy sector. The enemy struck two of our thermal power plants. The facilities were severely damaged," the company said in a Telegram statement.
This is the sixth major attack on DTEK's thermal power plants since mid-March, it added.
Ukraine's Energy Minister German Galushchenko said Russia had attacked sites in five regions - Donetsk, Dnipropetrovsk, Kirovograd, Ivano-Frankivsk and Zaporizhzhia - stretching from near the eastern front line to Ukraine's western border with the EU.
The ministry warned that there could be power supply restrictions as a result of the attacks.
President Volodymyr Zelensky said Moscow was trying to "take advantage" of a lack of "determination" among Ukraine's main Western backers and repeated his call for more air defense systems.
"Russia's main goal is to normalize terror, to take advantage of the lack of sufficient air defense and determination of Ukraine's partners," he wrote in a social media post.
"This is a test of humanity and resolve for the free world. Either we pass this test together or the world will plunge into even greater destabilization and chaos," he added. | BGNES
