Power failure hits Fukushima plant in Japan
A power failure at Japan's tsunami-hit Fukushima nuclear plant has affected cooling systems for spent fuel ponds.
A statement from operator Tepco said the cause of the power failure, which began at 18:57 (09:57 GMT) on Monday, was still being assessed.
The outage had hit ponds at reactors 1, 3 and 4, it said, but cooling to the reactors themselves was not affected.
Rupert Wingfield-Hayes reports.