Maria Cantwell

Officials on alert after tunnel collapse at Hanford nuclear waste site in Washington state

Officials on alert after tunnel collapse at Hanford nuclear waste site in Washington state

Officials in southeastern Washington state went on alert Tuesday after reporting a cave-in of a tunnel containing radioactive materials at the Hanford Site, a deactivated nuclear weapons complex that has become one of the nation’s most challenging nuclear cleanup sites.

No injuries have been reported, all cleanup employees are accounted for, and officials have not confirmed any release of radiation, according to the Hanford Emergency Operations Center. The center went into operation at 8:26 a.m. after workers discovered a 20-by-20-foot section of soil had collapsed over a tunnel.

By Tuesday evening, the operations center posted a notice on its website: "Officials continue...

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