A fire near the Grand Canyon National Park in Arizona has grown more than 20 times in size in 24 hours as an intensifying wildfire season sees the return of Canadian wildfire smoke into the U.S.

A Grand Canyon water treatment facility located at the North Rim caught fire on Saturday, causing chlorine gas to be released into the air. Multiple closures are being enforced due to the incident.

Strong winds and hot, dry weather continue to fuel two separate wildfires near the northwestern side of the Grand Canyon Saturday, closing the canyon’s North Rim and forcing evacuations throughout the area.

Authorities maintained the evacuation zones for the White Sage Fire north of the Grand Canyon as the fire grew expectantly.

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

Officials evacuated Jacob Lake and the North Rim of the Grand Canyon was closed to visitors because of the fast-moving White Sage wildfire.

The visitor center, the gas station and a waste water treatment plant also were lost, along with some employee housing and an administrative building.

GRAND CANYON NATIONAL PARK, Ariz. (AZFamily/AP) - A historic lodge on the Grand Canyon’s North Rim has been destroyed by a wildfire, the park confirmed Sunday. Grand Canyon National Park Superintendent Ed Keeble told park residents and staff that the ...