The Labour MP whose Bassetlaw constituency includes HMP Ranby said his repeated warnings about "dysfunctional" management and serious staff shortages at the prison had been ignored by ministers and prison officials.
John Mann said: "It is a prison where, for quite a time, it's been clear prisoners have been running the prison."
He added that there were 80 fewer prison officers than previously - a 20% reduction - with many experienced individuals having been "forced out" over the past two years.
He said: "There are not the numbers or the expertise among the staff to deal with it. The governors were warned, the Government was warned, by me and by many others, that this would lead to disaster. He added: "I have raised this directly with the prisons minister more than once."
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