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Reactor at Bulgarian nuclear plant shut down

A 1,000-megawatt reactor at Bulgaria's Kozloduy nuclear plant was temporarily shut down early Saturday due to a turbogenerator problem, but no rise in radioactivity was recorded, a statement said.

"Unit 6 of the Kozloduy plant was shut down by the turbogenerator's protection system," the plant said, adding: "No change in the level of radioactivity has been registered."

The unit was to be restarted by the end of the day.

Kozloduy, Bulgaria's sole nuclear power plant, has two 1,000-megawatt reactors supplying about 30 percent of the country's power.

Four older 440-megawatt reactors at the plant were shut down in 2002 and 2006 as conditions for Bulgaria's entry into the European Union.