#WATER SAFETY - Summer swimmers have been urged not to underestimate the coldness of the water after a teenager drowned in a Co Derry reservoir in the early hours of this morning.

BBC News reports that emergency crews were called to the scene at Creggan reservoir where a group of youths had been swimming.

The body of a 19-year-old man was recovered from the reservoir around 6.30am this morning. It's reported that his family were present at the scene.

The NI Fire Service also confirmed that they had to rescue another young man to had entered the water to try to rescue his friend.

Paddy Wilson from Foyle Search and Rescue said he believed the young people had been having a party at the reservoir, and the victim had tried to swim to a floating platform when tragedy struck.

The incident was similar to the death of 17-year-old Sean McNair from Donegal, who drowned after going into the water at Rathmullan Pier in July last year.