No-fly zone over damaged Japanese nuclear plant
SOMA, Japan - After three explosions and a fire at Japan's Fukushima Dai-ichi nuclear plant, officials there say they make ask the U.S. and Japanese military for help cooling a storage pond for spent fuel. The idea is for helicopters to spray water into it.
While the fire in the pond is out, boiling water has sent radioactive steam into the air.
Japan's transport ministry says it has imposed a no-fly zone over a 20-mile radius around the stricken Fukushima Dai-ichi nuclear power plant. But that wouldn't apply to the helicopter flights.
Officials are struggling to address the failure of safety systems at several of the plant's reactors after Friday's earthquake and tsunami.
Japanese authorities are telling people to remain calm but warning those near the crippled nuclear plant to seal themselves indoors.
Tokyo, about 170 miles away, has reported slightly elevated radiation levels, but officials say the increase was too small to be a threat.