Prison Officers Association vice chair Ralph Valerio has said he has heard from officers at Maidstone Prison that up to 180 prisoners are involved. Mr Valerio said officers on site had the training and skills necessary to bring the mass riot under control.
Mr Valerio said he hoped negotiators would be able to subdue the situation. 'But this could be replicated across the estate very quickly,' he told Sky News. A decision would have to be made whether prison guards go into the wing to try to subdue it, he said.