London (CNN) -- About 40 prisoners at an open prison in southern England started a rampage early Saturday, smashing windows, setting fires and forcing prison staff to retreat, the Ministry of Justice said.
The incident at HMP Ford began around midnight (7 p.m. ET Friday) and was still going on 10 hours later, a ministry spokesman said.
The prisoners also set off fire alarms, and police, firefighters and specialist teams of prison officers had to be called in.
There were no reports of injuries to either prisoners or staff, the ministry said.
HMP Ford is in a former Royal Navy station in Arundel, near the coast about two hours south of London. It was converted to a prison in 1960 and houses offenders who have fewer than two years left to serve on their sentences.
Prisoners there are convicted of a variety of offenses, though the prison does not accept those convicted of arson, some sexual offenses and harassment. CNN
