Tokyo Electric Power Co. said Wednesday night that it found chinks in a storage tank from which 300 tons of highly radioactive water escaped with barely a trace last month.
It is highly possible the small openings are what caused the massive leak, but more testing of the flange-type storage tank is required to confirm that, said Akira Ono, chief of the Fukushima No. 1 power plant, during a news conference at the plant streamed live over the Internet.
The water is thought to have entered the ground or made its way into the sea.
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