A major rescue operation is underway after a man has become trapped in a Brecon Beacons cave system.

The man fell and became injured while caving in Ogof Ffynnon Ddu at Penwyllt, near Ystradynlais, on Saturday, November 6.

Due to his injuries, the extent of which are unknown, he is said to be unable to climb out of the cave.

Another caver notified police of the incident, and now at least eight rescue teams across the UK, including South and Mid Wales Cave Rescue Team, are involved in the rescue.

Paul Taylor, spokesman for the South and Mid Wales Cave Rescue team, said: "On Saturday, 6 November 2021, a male caver was undertaking a trip in the Ogof Ffynnon Ddu cave system and fell, resulting in some injuries that meant he could not exit under his own steam."A fellow caver notified the police and the South and Mid Wales Cave Rescue Team initiated a response.

"This incident is ongoing and involves cave rescuers from teams across the UK, Gloucestershire Cave Rescue Group, Midlands Cave Rescue Organisation, Derbyshire Cave Rescue Organisation, Mendip Cave Rescue, the South East Cave Rescue Organisation, the cave rescue organisation and the Upper Wharfedale Fell Rescue Association and other associated teams.

"The response to the incident has continued during the night and we are moving the casualty towards the top entrance of the cave, which is located upon the mountain and will be the point of exit."

With a depth of 274 m (900 ft) and at least 50 kilometres (31 mi) long, Ogof Ffynnon Ddu is the second longest cave in Wales and the deepest in the United Kingdom.