Engineers have been battling to control the six-reactor Fukushima complex since it was damaged by a 11 March earthquake and tsunami that also left more than 27,000 people dead or missing across Japan’s devastated north east.
Radiation at the Tokyo Electric Power plant has soared in recent days: latest readings at the weekend showed contamination 100,000 times normal in water at reactor No. 2 and 1,850 times normal in the nearby sea. Those were the most alarming levels since the crisis began, experts said.
Tokyo Electric conceded it does not know how long the crisis will last.