The four were airlifted from Tryfan by a helicopter from RAF Valley

A family was airlifted from a 3,000ft mountain in Snowdonia after one of them suffered a knee injury.

The parents had tackled Tryfan on Thursday evening with their 14- and 12-year-old sons, but after leaving the summit, the older boy suffered a dislocated kneecap.

His mother, a healthcare professional, managed to reduce the dislocation, but the boy was still in considerable pain, preventing any further progress down the mountain.

The family called for help shortly after 10.30pm and Ogwen Valley Mountain Rescue Organisation was alerted.

Chris Lloyd of the team said: “The team leader requested the assistance of the RAF helicopter as team members gathered at Oggi Base.

“Fortunately, the Sea King was able to fly directly to the family, while team members made their way up the North Ridge.

“All four of the family were winched aboard and brought down to Oggi Base, at the foot of Tryfan.

“A doctor examined the casualty and advised the parents to have him checked at the local emergency department at Bangor.”

The rescue ended about 1am on Friday.

Mr Lloyd added: “The family was reasonably kitted for this ascent and did have a torch, though only one, which made locating them easier.”