Roughly 17,000 residents in the Canadian province of Manitoba have been evacuated because of nearly two dozen active wildfires, officials said Saturday.

Authorities in Manitoba, which shares a border with the U.S., issued a state of emergency. Winds will likely blow wildfire smoke into Midwestern states.

Massive wildfires burning out of control in western and central Canada are forcing thousands to flee. The blazes are also sending hazardous smoke toward major cities in the United States.