KYIV, Dec 12 – Eight out of nine power units of nuclear power plants (NPPs) located in Ukraine-controlled territory are again operating in the power system after a blackout due to the eighth massive attack of Russian invaders on the energy infrastructure on November 23, head of the State Nuclear Regulatory Inspectorate Oleh Korikov has said.

"Two weeks ago, as a result of shelling and a targeted attack on the energy infrastructure, there was a decrease in frequency, and all eight power units operating at that time were switched off in an emergency. As Ukraine's power system was restored, the operation of the power units was fully restored, and today we have eight out of nine power units operating in Ukraine-controlled territory," Korikov said on the air of the national telethon on Saturday.