Up to four hundred prisoners are said caught up in rioting at a low-security jail in the East Midlands of the UK.Parts of Ashwell prison in Leicestershire are ablaze. Fire engines, ambulances and a helicopter are at the scene and specialist prison officers trained in riot control have secured the perimeter. No casualties have been reported. Several vans have ferried inmates away from the scene as police squads prepare to retake control of the facility. The prison holds 600, It is not known exactly how many inmates are involved in the disturbance which has been described by the authorities as an incident of “concerted indiscipline”. The category C prisoners have unsupervised access to the prison grounds and keys to their own rooms.