A nuclear reactor operated by Tokyo Electric Power Co. in Fukushima Prefecture will be suspended as irregularities in a circulation pump for coolant water have been found, the utility said Friday.
The No.1 reactor at Tepco's nuclear plant in the town of Naraha will be shut down manually at around midnight Friday so components can be changed, the utility said, adding there would be no risk of outside radiation leaks. It will take about a week to replace the parts and test them, Tepco said.