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. Last Updated: 07/27/2016

Ukrainian Nuclear Reactor Reports Malfunction

KIEV, Ukraine - Workers at Ukraine's Zaporizhia nuclear power plant reported a malfunction in a cooling pump and reduced output at one reactor by 40 percent, officials said Tuesday.

The pump for reactor No. 2 failed before dawn Monday due to a short circuit, the state Energoatom nuclear company reported. The breakdown posed no threat to people and the environment, the company said. Repairs were expected to last through Tuesday evening.

Six Soviet-made VVER-1000 reactors are operated at the Zaporizhia plant, one of the largest civilian nuclear facilities in Europe.

Meanwhile, workers Tuesday restarted reactor No. 1 at the Yuzhnaya plant in southern Ukraine after nine days of scheduled repairs, Energoatom said.

Ukraine was the site of the world's worst nuclear accident in April 1986, when a reactor exploded and caught fire at the Chernobyl plant. The country shut down the last working reactor at Chernobyl in December, but concerns remain about the safety of other plants. Presently, Ukraine operates 13 nuclear reactors.