The northeast United States is enduring heavy smoke pollution from hundreds of Canadian wildfires raging out of control.
Outdoor activities are being canceled across the U.S. east coast as millions of Americans are urged to stay indoors to avoid inhaling heavy wildfire smoke drifting south from Canada.
Cities like New York and Detroit are being blanketed in an orange haze that smells of burning wood as Canada experiences one of its worst wildfire seasons.
Hundreds of forest fires are raging across Canada, many of which started weeks ago but are now being affected by a storm system off the coast of Nova Scotia, forcing the smoke south and then east into some of the most densely populated areas in the United States.
The weather pattern is expected to persist for several days, with harmful haze likely to continue across the region.