Three Hikers Die in Grand Canyon Heat

The fatalities occurred during daytime hikes in the inner canyon, where temperatures exceeded 115°F (46°C).

Park officials reiterated warnings to avoid hiking between 10 a.m. and 4 p.m. during summer months.

The incidents come as the broader Southwest United States endures a prolonged heatwave.

Authorities are reviewing safety protocols to prevent further tragedies.