The blazes have consumed about 45,000 acres of land, an area about the size of Washington, D.C. Park officials said the Dragon Bravo Fire, which has burned 5,000 acres within the park, destroyed dozens of structures including the Grand Canyon Lodge,

Parts of Grand Canyon National Park remained closed to the public Sunday because of wildfires and the release of chlorine gas from a North Rim water-treatment facility, the National Park Service said.

The White Sage and Dragon Bravo wildfires in Arizona have together burnt more than 40,000 acres and destroyed the historic Grand Canyon Lodge. Up to 80 other structures in the Grand Canyon National Park's North Rim, including a water treatment facility, have also been lost. No injuries are reported.