Thirteen people were rescued from the River Foyle by Derry's search and rescue team last year, it can be revealed.
Foyle Search and Rescue was involved in a total of 154 incidents, which is down 19% from 2014.
As well as saving 13 people in the water, there were 61 instances where distressed people were taken away from the river's edge or bridges.
A further 76 people believed to be in need of help were approached by volunteers.
"Sadly, we returned the bodies of two people to their families," a spokesman said.
During 2015 volunteers gave more than 11,000 of hours of unpaid service to the local community.
In addition, volunteers carried out one boat rescue and assisted the Garda in a search for a high risk missing male.
"Our statistics for the year do not include the major incident in June in which FSR along with other statutory agencies rescued 28 people from the water who were in a canoe accident," the spokesman said. "Thank you for the continued generosity of both the local community and statutory agencies, for which we are extremely grateful."