Police say the body of a 15-year-old boy is found near a reservoir, prompting renewed warnings about staying safe around open water during hot weather. The reports describe an incident in which the boy’s body is discovered in the area of the reservoir, with officers investigating the circumstances. Local police also issue safety advice encouraging people to enjoy warm weather responsibly and to take care when using rivers, lakes and other water bodies. One source notes that the deaths are part of a wider pattern during the recent heatwave, stating that seven people have died in open water. The coverage does not indicate any specific cause of death in the available summaries, and the investigation is ongoing. Authorities’ messages focus on preventing drowning and highlighting the risks of swimming or being near water without appropriate supervision and safety precautions. Overall, the reports focus on the discovery of the boy’s body and the broader public safety warning issued as temperatures remain high.