Prison violence in Guernsey has more than doubled in the last year.
That is according to the prison's latest annual report.
It showed that staff used force to control situations with prisoners twice has much than in the previous year, and that instances of prisoners breaking the rules had also doubled.
The Prison Governor is putting the increase in violence down to an increase in the number of prisoners, and says there is a zero tolerance to this kind of behaviour.
Concerns have also been raised by independent inspectors over how mental health conditions are dealt with.