Foyle Search and Rescue say their volunteers have been tasked to three separate incidents over the weekend.
The rescue charity said the incidents all involved 'people in distress'.
"In conjunction with the PSNI all incidents were successfully resolved," a spokesperson for the charity said.
"Appreciation to CCTV for their invaluable assistance on each occasion and to our Pager Teams. If you need support and help please don't do it alone reach out."
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