3 hikers die of suspected heat-related illness during rising temperatures at Grand Canyon

Three hikers died from apparent heat-related illnesses in the Grand Canyon's inner canyon over two separate days, with temperatures exceeding 109°F (43°C) in the shade. The victims, aged 72, 67, and 68, were found on the South Kaibab and North Kaibab Trails, and park officials urged hikers to avoid trails during peak heat hours. Investigations into the deaths are ongoing.