| The staff members 
				were taken to hospital, treated and released after the incident 
				that put the Lincoln Correctional Center on lockdown, Nebraska 
				Department of Correctional Services spokeswoman Dawn-Renee Smith 
				said in a statement.
 The staff members were assaulted by inmates who refused to 
				return to their housing units, she said.
 
 It was unclear if any inmates were injured during the incident.
 
 (Reporting by Brendan O'Brien in Milwaukee; Editing by Paul 
				Tait)
 
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