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. Last Updated: 07/27/2016

Zaporizha Reactor Shuts

KIEV -- A steam leak from a pump shut down a reactor Monday at the Zaporizha nuclear power station, Europe's largest plant and the most trouble-prone of five in Ukraine.

A spokesman for Ukraine's nuclear safety inspectorate said the steam had remained in the containment vessel of Zaporizha's first reactor and posed no threat to the environment. The incident rated zero on the international scale of seven.

The reactor, built in the early 1980s, was shut down until Friday.