Two men have been found dead at Bawsey Pits near King's Lynn. It follows a huge search and rescue operation yesterday afternoon, involving fire and ambulance crews, and RAF and police helicopters.
The emergency services were called at about 4.30pm. Hours later, they found the two men's bodies in the water. An investigation into what happened is underway.
Two people have died in separate incidents which have prompted fresh warnings over the dangers of swimming in open water.
The dangers of cooling off in the heatwave have been highlighted after the bodies of two men were recovered from water spot in Norfolk.