A 72-year-old man died on the South Kaibab Trail on June 12 and a 67-year-old man and 68-year-old woman died on the North Kaibab Trail on June 16, with the deaths appearing due to heat-related illness according to ABC News and CBS News. An extreme heat watch was in effect on June 16 with inner-canyon temperatures exceeding 109°F, while an investigation continues. A separate wildfire prompted evacuations in Oak Creek Canyon near Sedona.