Bulgaria Shuts Reactor at Criticized Plant

SOFIA, Bulgaria — A nuclear reactor criticized by international experts as unsafe was shut down Tuesday at the Kozlodui power plant, the government said.

Bulgaria’s only nuclear power station was planned to provide 40% of the nation’s electricity needs, but it is working at less than half its capacity. Two of its four old Soviet-designed reactors have been closed and one of two new and larger reactors is not yet in operation.