A nuclear power plant on the front line of the Ukraine war again lost external power, U.N. inspectors said on Saturday, fuelling fears of disaster while Moscow kept its main gas pipeline to Germany shut to hurt economies of Kyiv’s friends in the West. 

The Zaporizhzhia plant, Europe’s largest, had its last remaining main external power line cut off, although a reserve line continued supplying electricity to the grid, the International Atomic Energy Agency (IAEA) said. Only one of the station’s six reactors remained in operation, the agency said in a statement. The plant, seized by Russian troops shortly after their Feb. 24 invasion, has become a focal point of the conflict, with each side blaming the other for nearby shelling.