Rescue services warning over open water drownings after heatwave

The record temperatures here in the UK tempted many people to cool off in open water despite warnings from rescue services about the dangers.

At least 25 people drowned this month alone – many of them in spots like lakes or quarries, or after getting into difficulty in the sea.

We spoke to sports scientist and former Olympian Professor Greg Whyte and began by asking him how big a problem is drowning in the UK.