TOKYO: The operator of quake hit Japanese nuclear reactors said Sunday the top of fuel rods had been three metres (10 feet) above water, an indication of a possible meltdown.
Tokyo Electric Power (TEPCO) warned that the number three reactor at Fukushima No. 1 plant was overheating and that so much of the cooling water had briefly evaporated that mixed oxide fuel rods were exposed to the air, Kyodo news said.
A TEPCO spokesman later told AFP that the rods were covered again.
An explosion that destroyed the building around the No. 1 reactor at the same plant Saturday came despite the operator's efforts to control high temperatures and growing pressure.
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