The fire on the North Rim of the Grand Canyon started from a lightning strike but was managed as a controlled burn until it spread.

A wildfire in tinder-dry forest on the North Rim of the Grand Canyon grew around 50% on Tuesday after it destroyed dozens of buildings, prompting public outrage that it was left to burn for a week before firefighters tried to fully extinguish it.

Along the Grand Canyon’s North Rim, the Dragon Bravo Fire that destroyed the lodge and other buildings spread to nearly 9 square miles (23 square kilometers) Monday.

RICHFIELD, Utah ( ABC4) — The Monroe Canyon Fire has almost doubled in size since Monday, reaching over 8,600 acres. As of Wednesday morning, the Great Basin Team 3, a Complex Incident Management Team, took command of the fire that remains at 0% completion.

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.

The Monroe Canyon Fire in Sevier County continues to grow rapidly, scorching more than 8,600 acres with zero percent containment as of Wednesday evening.

The congressman is the latest lawmaker asking why the Dragon Bravo fire was not immediately extinguished when it was ignited by lightning on July 4.