The Dragon Bravo Fire has burned more than 8,500 acres southeast of the Grand Canyon. The fire was sparked by lightning on July 4 and has destroyed dozens of structures on the North Rim, including the historic Grand Canyon Lodge.

A growing wildfire at the Grand Canyon's North Rim has now charred at least 50 structures, including a historic lodge inside the popular tourist site.

Crews fighting a wildfire were focused on stopping the flames from consuming nearby cabins, a water pumping station, mule stables and other structures, fire officials said.

Arizona officials are pressing for an investigation into the National Park Service's handling of the Dragon Bravo Fire, which spread after being managed as a controlled burn.

Firefighters are battling a lightning-caused wildfire on the North Rim of the Grand Canyon. The Dragon Bravo Fire has burned down the Grand Canyon Lodge and triggered a chlorine gas leak.

Gov. Katie Hobbs wants an independent federal investigation on the handling of the Dragon Bravo wildfire, which has burned more than 5,700 acres as of Monday.

The Dragon Bravo Fire started on July 4 at the Grand Canyon's North Rim and was 10 acres but things changed last weekend when flames went out of control. Crews let the fire burn for days and managed it for "resource objects,