SOUTH West Water is urging people not to swim in reservoirs and lakes as the hot weather flash continues.

These include Roadford, Colliford, Wimbleball, Stithians and Burrator.

With a Met Office Amber weather warning in place in Cornwall, the water company warns that reservoirs have steep sides and can contain deep, cold water, hidden machinery and strong currents beneath the surface.

South West Water head of networks Richie Adams said: “We know our reservoirs can look very tempting in hot weather, but they are operational sites and it is never safe to enter the water.

“Hidden machinery, strong currents and the shock of deep, cold water can all pose serious risks, which is why we’re asking people to enjoy these spaces safely from the shore and follow any safety advice or temporary closures in place.”