Tokyo, Dec. 4 (Jiji Press)--Tokyo Electric Power Company Holdings Inc. on Thursday began the sixth round for fiscal 2025 of the release into the sea of treated water from its disaster-crippled Fukushima No. 1 nuclear power plant in northeastern Japan. In the ongoing operation, set to run until Dec. 22, some 7,800 tons of treated water containing tritium, a radioactive substance, will be dis...