New leak of radioactive water at Fukushima nuclear plant may have flowed into Pacific Ocean: TEPCO

Fukushima Dai-Ichi nuclear power plant

Photo: TEPCO says it does not know how much water has leaked from the damaged Fukushima reactor. (AFP: Tomohiro Ohsumi)

(ABC/Reuters) The operator of the crippled Fukushima nuclear plant says it has found a new leak of radioactive water that might have flowed into the Pacific Ocean.

The leak from the 450-tonne storage tank is the second of its kind in as many months, and involved water with high concentrations of radioactive strontium and caesium.

Fukashima operator Tokyo Electric Power (TEPCO) says it does not know how much water leaked, adding that it could have flowed from an adjoining drainage ditch into the sea.

TEPCO has apologised for causing anxiety.

Last month, 300 tonnes of highly contaminated water leaked from a tank and some is believed to have flowed into the Pacific.

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