Firefighters in Arizona were trying to contain a pair of fast-moving wildfires that destroyed a historic lodge in Grand Canyon National Park, closed a section of the park for the rest of the season and prompted calls for an investigation into federal authorities' wildfire response.

The lodge itself told a key part of history for both the Grand Canyon and the National Park Service.

Arizona Governor Katie Hobbs demanded an independent investigation into the federal government's handling of the fire, which was sparked by lightning on July 4.