A US jail has been positioned underneath an emergency lockdown after about 100 prisoners refused to return to their cells.

Members of a disaster negotiation staff are on the jail within the state of Minnesota.

A spokesperson for the state's Department of Corrections stated on Sunday the particular operations response staff had been deployed "out of an abundance of caution".

The purpose prisoners have been refusing to return to their cells at one of many facility's dwelling models remained "unclear", in accordance with the spokesperson.

No accidents had been reported and two officers on the Stillwater correctional facility have been stated to be protected in a safe management space.

They are involved with facility employees and the spokesperson added the scenario was "currently stable".

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Just over 1,200 inmates are on the facility to the southeast of Stillwater, in accordance with division information.

The facility, which was in-built 1914, is the state's largest close-security establishment for males.

There is a complete of seven dwelling models on the facility, in accordance with the Department of Corrections's web site.

The web site notes the ability's function is to supply males with "educational, vocational and industrial programming opportunities during incarceration".