5 Workers Exposed To Radiation At Japan Nuclear Lab

Five workers at a Japanese nuclear facility that handles plutonium have been exposed to high levels of radiation after a bag containing highly radioactive material apparently broke during equipment inspection, the country’s Atomic Energy Agency said Wednesday.

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The incident occurred Tuesday at its Oarai Research & Development Center, a facility for nuclear fuel study that uses highly toxic plutonium. The cause of the accident is under investigation, the state-run agency said. It raised a nuclear security concern as well as a question whether the handlers were adequately protected.