– Steve Gillan, general secretary of the Prison Officers Association
The POA are aware of the attack on two prison officers at HMP Full Sutton.
Until the full facts of the incident are known, we do not wish to speculate or indeed compromise an ongoing police investigation.
We can confirm that officers sustained injuries and, had it not been for the professionalism of prison officers dealing with this violent incident, the outcome could have been worse.
Counter-terrorism officers have been brought in to investigate an attack on two prison officers at a maximum security jail.
A male warder was left with a broken cheekbone after being held hostage by three male prisoners, two aged 25 and one aged 26, while a female prison officer received minor injuries as she attempted to help her colleague.
The North East Counter Terrorism Unit (CTU) has been called in to lead the investigation into the incident at HMP Full Sutton in Yorkshire.
A statement from the unit said: "Inquiries are ongoing to establish the circumstances surrounding the incident. Given the potential nature of the incident and the range of skills and expertise within the North East CTU, the unit is leading the investigation at this time."
Both prison officers have received treatment for their injuries and have since been discharged.
A prison officer has been attacked by three inmates at a maximum security prison in Yorkshire, the Ministry of Justice said.
The warden was reportedly stabbed during a four-hour stand-off at HMP Full Sutton on Sunday.
Police are investigating an incident involving three prisoners at HMP Full Sutton in Yorkshire.
A Ministry of Justice spokesman said: "An incident involving three prisoners took place at HMP Full Sutton on 26 May from 4.25pm and was successfully resolved at 8.40pm after staff intervened.
"A police investigation is ongoing."