Police described him as a “child under the age of 16”, saying he was in the water at around 6.15pm on Saturday. An investigation was carried out by police and the coastguard, with the boy’s body found around 11.30pm. No further details have been released about the boy or how he got into trouble in the water. Superintendent Lee Pache said: “We received a high volume of calls about missing people on the coast yesterday. “At one point, within two hours, we received 10 calls. “All those reported missing, apart from the child who sadly died, have been located safe and well. “Our thoughts are with the boy’s family.” UK Weather Live: The temperature will reach 35C. man dies in Doncaster lake. Storm warnings are extended It came as temperatures plunged into the mid-30s in parts of the UK, prompting many people to head to coastal areas to cool off. Late last week, Gareth Morrison, head of water safety at the Royal National Life Boat Institution (RNLI), said: “With so many people enjoying the water this summer, it is important that we are all aware of the risks. “If you run into trouble in the water, Float to Live – lean back, using your arms and legs to stay afloat. “Check your breathing and then call for help or swim to safety. “In a coastal emergency, call 999 or 112 for the Coastguard.” He added: “Record numbers are getting on the water and in boats such as paddle boats and kayaks, many for the first time. It’s important to always remember to wear a life jacket or flotation device and use a means of calling for help.”