KYIV, Oct 17 – Ukraine needs to protect the sky over its energy facilities, Energy Minister Herman Haluschenko has said.

"It turned out to be not enough for the Russians to break only the line to de-energize the nuclear power plant. Now, they are testing our ability to quickly restore the electrical substation. Such nuclear blackmail by a terrorist country should not go unanswered by the world community," Haluschenko wrote on his Facebook on Monday.

He said that in attacks by Russian terrorists on Monday, the energy infrastructure in Kyiv, Dnipropetrovsk and Sumy regions was damaged, and both household consumers and industrial enterprises were again disconnected from power.