The man was attacked on Sunday at HMP Nottingham, the Ministry of Justice said. The male officer has since been released from hospital. An inspection report published last year found levels of violence at the prison were “very high”, with 103 assaults on staff in the previous six months.
Over the same period, there had been 198 incidents where prisoners had climbed onto safety netting between landings.
HM Inspectorate of Prisons said: “This level of disorder contributed to a tense atmosphere at the prison,” adding that many violent incidents, including serious ones, were not investigated at all.
Chief inspector of prisons Peter Clarke Clarke said the prison needed to do “much more” to tackle the problem of drugs which was “inextricably linked” to violence in his report.
HMP Nottingham is a category B male prison which expanded in 2010 to hold 1,060 prisoners.
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