A fire Tuesday partially burned the ceiling of a building housing a nuclear reactor in Tokai, Ibaraki Prefecture, the prefectural government and the reactor's operator said.
The fire broke out at around 9:30 a.m. and was extinguished two hours later, they said, adding the blaze at the research reactor facility did not result in a radiation leak and no one was injured.
The ceiling under the building's steel plate roof was set alight by sparks during welding work on the roof, the Japan Atomic Energy Agency said. (Japan Times)
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