The ongoing Canadian wildfires have reportedly blanketed a third of the United States, affecting millions, with the National Weather Service issuing air quality alerts for several states.

More than 25,000 residents in three provinces have been evacuated as dozens of wildfires remained active Sunday and diminished air quality in parts of Canada and the U.S. Most of the evacuated residents were from Manitoba,

Wildfires in Canada have forced thousands of residents to evacuate in three provinces, impacting air quality in the U.S. — and smoke from the deadly fires has even blown across the Atlantic and reached parts of Europe.