The incident happened in Nant Gwynant. Photo: Gareth Hughes CC-BY-SA-2.0

A walker taking part in a Duke of Edinburgh’s Award expedition was rescued after injuring herself.

The 16-year-old girl slipped on wet rocks in the Nant Gwynant area south-east of Snowdon today, aggravating an old knee injury.

She was unable to continue as she could not put any weight on the leg.

Aberglaslyn Mountain Rescue Team was called out shortly after 1.30pm and deployed both its Land Rover ambulances to the scene.

The teenager was treated at the scene and then stretchered a short distance to one of the vehicles which then brought her down to the roadside.

One of the Duke of Edinburgh’s Award leaders then took the girl to Ysbyty Gwynedd in Bangor for further treatment.

The rescue lasted two hours.