A correctional officer at Green Bay Correctional Institution was sent to the hospital after he was attacked by an inmate the morning of July 1, the Department of Corrections said.
The staff member was treated and released, said Tristan Cook, Wisconsin DOC Communications Direction. There are no details on the injuries the officer suffered at this time.
The DOC has referred the incident to the Brown County Sheriff's Office and started an internal investigation, Cook said.
The correctional institution is not on lockdown.
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