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A disturbance at a Sheppey prison has now been brought under control.
At least one inmate was taken to hospital with what are believed to be minor, self-inflicted injuries following the incident at HMP Swaleside earlier today.
The Tornado Squad - a rapid response unit trained specifically to deal with prison riots - was deployed this afternoon following the trouble involving a small number of inmates.
The incident was isolated to one wing and no staff members are believed to have been injured.
A prison service spokesman said this evening: "Specially trained prison staff successfully resolved an incident at HMP Swaleside on 3 December.
"We do not tolerate violence in our prisons and are clear that those responsible will be referred to the police and could spend longer behind bars.”