Heavy smoke from wildfires blankets the US Midwest and Northeast, prompting evacuations

Heavy smoke from wildfires in the U.S. Midwest and Northeast has prompted evacuations, particularly in Minnesota's Boundary Waters Canoe Area Wilderness. Over 100 wildfires in Canada are contributing to the smoke, which has led to unhealthy air warnings across multiple regions. Authorities are evacuating thousands of campers, with rescue efforts involving both U.S. and Canadian officials.