NewsGreater Manchester NewsDerbyshire'Hidden dangers'09:58, 11 Jul 2026A stark warning has been issued after the death in Derbyshire of an 18 year-old who got into difficulty while swimming in a river.‌The tragedy in Derbyshire on Friday afternoon follows recent water deaths in Oldham, where an 18 year-old died at Dovestones Reservoir, and in Stockport, where a 49-year-old man died after getting into difficulty at Sykes Reservoir at Alexandra Park in Edgeley.‌Both deaths occurred in Greater Manchester within just 24 hours, prompting warnings over open water from the emergency services.‌Five fire engines and three water rescue units were deployed to the River Derwent, in Darley Abbey, Derbyshire, shortly after 12.46pm on Friday, before Derbyshire Fire and Rescue Service (DFRS) confirmed two