Menard Correctional Center has been on lockdown since Friday and will remain on lockdown until a thorough search has been completed.
A state prison spokesman says the lockdown of Illinois' largest maximum security prison will continue for days after a cache of crude weapons and homemade alcohol was found there.
Officials say the lockdown won't be lifted until a thorough search is completed of the Menard Correctional Center southeast of St. Louis.
The prison has been on lockdown since Friday's discovery of more than a dozen weapons, along with gallons of homemade alcohol, and juice and sugar used to make liquor.
In addition to looking for more items, officials are trying to figure out how the inmates managed to hoard the items.
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