Six inmates at a prison in the area of Plymouth, Massachusetts walked away during work detail at state forest.
Police say that the inmates escaped into the Myles Standish Forest just after 5 p.m. on Wednesday.
Three of the inmates were found at 9 p.m. that night near the forest.
Police are still looking for the other three at this time.
No confirmation yet on which prison the prisoners were being held prior to their escape. However, the Department of Corrections said they were "civilly committed" males from a detox facility and are not convicted felons.
