Ukraine’s largest hydroelectric dam, the Dnipro Hydroelectric Power Plant (HPP), is in “critical condition” after it was hit in a Russian strike on Ukraine’s key energy facilities, authorities say.

The head of the Zaporizhzhia region military administration, Ivan Fedorov, told Ukrainian television that the power plant can no longer produce electricity.

Traffic around the plant is “completely blocked,” he said, with residents being forced to drive over bridges to get around, he said.

Russia has continued its tactic of striking key energy facilities this week, with the Ukrainian Ministry of Energy warning Sunday of a “significant power shortage” as a knock-on effect of the strikes.