Operations at Stillwater prison are going back to normal on Thursday after a week of being locked down.
The Star Tribune reports the close-security prison was placed on lockdown on July 25 so staff members were free to conduct intensive searches and ensure contraband was not smuggled in.
Prison officials have not said whether a specific incident prompted the lockdown or what they were looking for, according to the Pioneer Press.
A Minnesota Department of Corrections spokesperson said last week that the lockdown was not a result of a fight or disturbance, KSTP reported.
Terry Carlson, deputy commissioner at the Minnesota Department of Corrections, said in a statement Wednesday that several items were seized and placed into evidence, but said she could not elaborate on ongoing investigations.
The more than 1,600 inmates are expected to return to their normal programming by the end of the day Thursday. Visiting hours will also resume their normal schedules Thursday.
KSTP said the last full-prison lockdown at the Stillwater facility occurred in 2010.