Three teenagers were airlifted from a Lake District mountain after suffering the effects of cold and rain.
They were among a group of 11 young people camping with a teacher and instructor on high ground between Place Fell and High Dodd, above Ullswater.
The night-time rescue involved more than 40 volunteer rescue team members.
Patterdale Mountain Rescue Team was called out by police about 6.40pm when one of the group was reported to be suffering from hypothermia.
A team spokesperson said: “Given the size of the group and the poor weather earlier in the day Patterdale Mountain Rescue Team requested the support of Penrith and Kirkby Stephen Mountain Rescue Teams and an RAF Sea King helicopter which was despatched from RAF Valley on Anglesey.
“When the team arrived on scene at about 8.10pm, a doctor assessed the young people and three of the group were airlifted to hospital in Barrow-in-Furness suffering from the effects of the cold and wet weather.”
The rescue involved 16 members of Patterdale MRT, 12 from Penrith MRT and 15 from the Kirkby Stephen team in an operation lasting more than four hours.
The Patterdale team spokesman said: “We would like to formally thank the RAF helicopter crew and colleagues in Penrith and Kirkby Stephen Mountain Rescue Teams for their assistance tonight.
“This was the second time in less than 48 hours that the teams have worked together to rescue teenagers at night.”
The spokesperson said all those taken to hospital have since been discharged.