Three hours later, Ukrenergo announced that restrictions were lifted across the country. "The enemy continues its energy terror," said Ukraine's Energy Minister Herman Halushenko in response to the attacks.Earlier on Feb. 1, Poltava Regional Administration reported damage to energy infrastructure in the Myrhorod district.Several hours later, the administration reported that the energy supply was restored in the district.There have been two massive Russian attacks on energy infrastructure over the past month, as well as frequent smaller attacks, but because of the warm weather, the Ukrainian energy grid was able to operate without scheduled blackouts.The outages on Feb. 1 was the second time this year when Ukraine had to introduce emergency power cuts across several oblasts due to the damage of the power system and threat of its collapse after the Russian attacks.