In this July 3, 2011 photo released by Tokyo Electric Power Co., iron sheets that protect workers from radiation are placed on the ground floor of the Unit 3 reactor building at the tsunami-crippled Fukushima No. 1 Nuclear Power Plant in Okuma, Fukushima Prefecture, northeastern Japan. The photo was taken through a window of a fork lift. (AP Photo/Tokyo Electric Power Co.)TOKYO (Kyodo) -- The operator of the crippled Fukushima Daiichi nuclear power plant said Thursday it started to inject nitrogen into the No. 3 reactor to reduce the risk of further hydrogen explosions, a move marking further progress toward containing the four-month-old nuclear crisis.
The injection of the substance into the plant's three troubled reactors has been one of the key goals Tokyo Electric Power Co. has intended to achieve by mid-July, and the No. 3 reactor was the only remaining one that was not receiving the inert gas.
As Tokyo Electric has also started to operate a new system that enables water to circulate around the three reactors to stably keep the nuclear fuel inside cool, the utility and the government believe they are basically moving ahead with the restoration work as planned in a road map.
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