Central Beacons along with colleagues from Brecon Mountain Rescue Team by South Wales Police to attend to a injured 12 year old school girl who was out for a day walk.  Whilst walking down from Corn Du the girl slipped and injured her her lower leg.  The hill party stretchered the casualty from the incident site back to the control point at Storey Arms and handed over to Welsh Ambulance Service, ambulance crew for transfer to Price Charles Hospital in Merthyr Tydfil.