A walker was airlifted to hospital after falling and breaking his leg in the Peak District.
The man, aged in his 50s, fell and landed awkwardly while trying to cross Abbey Brook in a remote area above the Derwent Reservoirs.
He was walking with a friend, who managed to get a signal on his mobile phone and raise the alarm.
Edale Mountain Rescue Team was alerted to the fall on Sunday morning and volunteers responded to the call for help.
A Royal Air Force Sea King helicopter was also scrambled because of the remoteness of the brook.
The casualty was then flown to Sheffield’s Northern General Hospital for treatment.
A rescue team spokesman said: “Team members were already at our base in Hope and were quickly able to make their way to the incident.
“In the meantime, given the location, a request was made for an RAF helicopter to assist.
“The injured man was treated at the scene by team members and had his leg put back into the correct alignment.
“Then he was winched from the scene and flown to hospital in Sheffield.”
The Edale team, which is made up of volunteers who respond to emergency calls for help, have dealt with more than 900 incidents since 2000. Members include doctors, paramedics, nurses, firefighters and police officers.
The team, which receives no Government funding, relies entirely on donations.