Russia and Ukraine renewed attacks on energy infrastructure overnight, damaging plants and causing fires, officials from the warring countries said.

The Ukrainian army said in its regular situational update on Saturday that Russia has hit Ukraine with a “massive missile attack”. Energy Minister German Galushchenko also said in a Facebook post that the “enemy” had again attacked Ukraine’s energy infrastructure.

“In particular, facilities in Dnipropetrovsk, Ivano-Frankivsk, and Lviv regions were attacked. There is damage to equipment,” he said.

The DTEK power operator said equipment at four thermal power plants was “severely damaged” in the overnight strikes.