The FBI is investigating Corrections Corporation of America after its Idaho prison was so violent inmates dubbed it "Gladiator School," according to a report by the Associated Press.
The Tennessee-based private prison company also operates the Kentucky prison that houses 460 Vermont prisoners.
CCA is in the first year of a two-year extension of an original two-year contract with Vermont to house up to 660 prisoners at Lee Adjustment Center in Beattyville, Ky. The entire contract is for $61 million.
A section of that facility was on lockdown from Jan. 15 to Feb. 4 after a series of assaults and general unrest.
Following the lockdown, CCA agreed to increase the number of employees monitoring that facility, according to Department of Corrections Commissioner Andy Pallito.
According to the AP, CCA officials acknowledged the Idaho Correctional Center had been understaffed by thousands of hours, violating the state contract. CCA also falsified reports to cover up the lack of employees, the company told the AP.
Using private prisons is also a controversial topic in Vermont. Pallito has said the practice will not end until the state cuts down on the number of inmates at in-state facilities.
There are about 1,600 in-state beds in Vermont correctional facilities and about 2,078 prisoners on any given day. There are also about 40 Vermont prisoners in a facility in Florence, Ariz.
CCA has also come under fire in other states. Kentucky last year ended its contract with the company after three decades of employing private prisons after a rocky past with the company.