Four of the five wildfires burning in Colorado have together consumed more than 19,300 acres, according to fire officials. How much Colorado land the fifth has burned is unknown.

Multiple U.S. states and Canadian provinces are experiencing poor air quality from wildfire smoke. Here's where.

The Dragon Bravo Fire has destroyed dozens of structures and a water treatment facility, and the White Sage Fire, located in Kaibab National Forest, has forced hundreds to evacuate.

Wildfires have scorched hotspots in several Mediterranean countries this month, with blazes forcing thousands of people into lockdown in Catalonia in Spain, and encroaching on France's second-biggest city of Marseille.

“Several other wildfires are still active in Colorado, including the Sowbelly Fire in the Dominguez-Escalante National Conservation Area, the South Rim Fire in Black Canyon of the Gunnison National Park and wildfires in Mesa County,” the outlet reported.

At least four firefighters have been injured over the last week while battling three wildfires in Northern California forests that are burning amid extreme heat in steep, bone-dry terrain, fire officials said Monday.

Two large wildfires in Northern California, one near Shasta Lake, continue to burn amid extremely hot weather, sending smoke throughout the state. The Green Fire and the Orleans Complex Fire have burned a combined 15,800 acres as of Sunday morning.

The Chicago area recorded ozone levels of 156 late Monday afternoon. Levels above 100 are considered unhealthy. Residents with respiratory issues, children and the elderly are advised to stay indoors and limit exposure to air outside until Tuesday evening.

The nearly 13,000-acre wildfire burning in eastern Utah crossed the Colorado border Monday night, joining four other fires already burning on the Western Slope, fire officials said.