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.

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.

Arizona senators are demanding answers from the Department of the Interior about allowing an ongoing wildfire at Grand Canyon National Park to burn for several days before trying to stop it.

As of Monday, the Dragon Bravo fire on the North Rim had consumed more than 5,700 acres and was not contained, according to the U.S. Forest Service.

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,