Edano said that a surge in radiation Wednesday morning meant workers were unable to continue even minimal efforts at the stricken nuclear plant.
About 45 minutes later, though, radiation levels near the plant came back down, he said. It's possible that evaporation from reactor No. 3 may have caused the temporary surge, Edano said, although that can't be immediately confirmed.The cabinet secretary added that there was no need to broaden the overall evacuation radius around the nuclear complex.
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