With 174 active wildfires burning across Canada, several U.S. states are under air quality alerts due to the traveling smoke from these flames.

Five states were under red flag warnings Tuesday due to hot, dry and unstable conditions, the National Weather Service said. Parts of Pennsylvania, New Jersey, Michigan, Washington and Alaska will ...

Firefighters and equipment from the lower 48 states and Canada are arriving to help battle wildfires burning in Alaska. Weary firefighters welcomed the help as they struggled to keep up with two ...