PHOENIX — Residents on the North Rim of the Grand Canyon have been ordered to evacuate due to a fire in Grand Canyon National Park. The fire, named the Dragon Bravo Fire, is approximately 5,716 acres and has 0% containment. It was caused by lightning on July 4, officials with the National Park Service said.

Gov. Katie Hobbs questioned why the U.S. government decided to manage the Dragon Bravo fire, which started with a lightning strike, as a “controlled burn” during the height of the summer.

What fueled the explosive growth of the Dragon Bravo Fire was a mix of gusty winds, dry air and above-normal heat – weather conditions experts described as atypical for this time of year, when monsoonal moisture typically tamps down wildfire risk across Arizona.

The Grand Canyon Lodge was the park's one and only hotel, according the National Park Service, with the next nearest lodgings roughly 18 miles away.

Arizona's governor has demanded an investigation into why a wildfire that destroyed a historic lodge and dozens of other structures on the North Rim of the Grand Canyon was allowed to burn for a week before federal firefighters tried to put it out.

A mix of high temperatures, gusty winds, low humidity, and dry vegetation has fuelled the fire's swift advance in Arizona, officials say.