Listen: Dale Alexander's friend recalls river tragedy following water warnings

With the warm weather recently it can be tempting to get into water to cool down. But there's a warning today against swimming in rivers, reservoirs and other bodies of water not normally open to the public. It comes from the Northern Ireland Water and the Quarry Products Association. The warning's backed by Brendan Winters whose close friend, Dale Alexander, died while swimming in the River Mourne in Sion Mills in 2009. Brendan's been speaking to our reporter Lauren Millar.