A disturbance at a women's prison in Lincolnshire is under control, a spokesman for the Prison Service has confirmed.
The Prison Service says the trouble at Morton Hall near Swinderby started on Thursday afternoon, but continued on Friday.
A group of prisoners became disruptive and refused to obey instructions - and a number of cells were damaged.
A spokeswoman says the prison has stabilised the situation and the prison is "back to normal".
She said there was no violence between staff and inmates.