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.
More top news
Queen Elizabeth II is to celebrate her 92nd birthday with a star-studded line-up at the Royal Albert Hall in London.
Both figures were not taken seriously before being appointed to their huge roles, but the similarities don't stop there.
The US president, who has not visited the UK since being elected, is reported to be planning a summer trip to Britain.