Autoridades de Estados Unidos emitieron alertas por calor extremo en el Gran Cañón tras la muerte de tres excursionistas.

Three hikers died from apparent heat-related illnesses in the Grand Canyon on two separate days in the past week in the inner canyon, where temperatures can exceed 109 degrees…

Hikers were on trails in the Inner Canyon, where officials said temperatures in the shade could reach 109 degrees around midday.