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.

LATAKIA, Syria (AP) — Some of Syria’s worst wildfires in years have been brought under control as of Sunday, according to the Civil Defense and the Ministry of Emergency and Disaster Management, following days of grueling firefighting in the forested countryside of the coastal Latakia province.

The amount of land burned this year is on pace to be the most since 1994, as 100 blazes roared on Friday across the central Canadian province.

The Michigan Department of Environment, Great Lakes, and Energy issued southeast Michigan's sixth air quality advisory of the season on Saturday due to elevated levels of fine particulate matter in the air from Canadian wildfires.

Wildfire smoke from Canada has made for bad air quality over parts of the Upper Midwest. Most of Minnesota had “unhealthy” air quality Saturday.

Syria has shut the Kassab border crossing with Turkey as massive wildfires edge dangerously close to the Turkish province of Hatay. Sparked amid severe drought and recent sectarian unrest, the fires have destroyed swathes of Syria’s green belt and now threaten cross-border regions.

Massive wildfires have torn through Syria’s coastal mountain region of Jabal Turkman since Thursday, destroying thousands of acres (hectares) of forest and overwhelming emergency services.

Researchers at the University of Colorado Boulder found that wildfires in Colorado and throughout the western United States can dramatically alter the water quality of rivers and streams up to