U.S. Senators Ruben Gallego and Mark Kelly joined Gov. Katie Hobbs in calling on U.S. Interior Secretary Doug Burgum to launch a full investigation into the fire management decisions that led to the loss of the irreplaceable Grand Canyon Lodge on July 12.

The fire that burned for days on the North Rim of Grand Canyon before it became uncontrollable was "expertly handled," the National Park Service said.

The Grand Canyon's North Bravo Fire intensified on July 11, the day before Katy Rock Shop owner Jacob Proctor and his family arrived at the national park.

National Park Service officials say a lightning strike inside the Grand Canyon National Park started the Dragon Bravo Fire.