Japan's crippled Fukushima nuclear plant has a new leak of radioactive water after workers overfilled a storage tank.
The plant's operator, Tokyo Electric Power says the workers miscalculated the tank's capacity as it was tilted on unlevel ground.
It says about 430 litres of water may have leaked from the tank, and could have flowed into the Pacific Ocean.
The BBC reports the plant has experienced several leaks since being crippled by an earthquake and tsunami in 2011.
In September, the government said it would invest hundreds of millions of dollars into building a frozen wall around the plant to stop the leaks.
