KYIV, Feb 24 - In three years of full-scale invasion, Russia has carried out more than 30 massive complex attacks on Ukrainian energy infrastructure facilities, the total damage from which amounts to billions of dollars.

"Each massive attack on the energy sector is one hundred to two hundred, and now three hundred different means of destruction, which simultaneously fly over electricity generation, substations, power transmission lines, and gas infrastructure," Ukrainian Energy Minister Herman Haluschenko wrote on Facebook on Monday.