Smoke from ongoing wildfires across Canada continued to drift into parts of the United States on Wednesday, causing hazy skies and triggering air quality alerts in multiple states across the upper Midwest and Northeast.

MINNEAPOLIS (FOX 9) - An air quality alert has been issued for all of Minnesota starting Sunday due to wildfire smoke from Canada. The Minnesota Pollution Control Agency (MPCA) has issued an air quality alert for all of Minnesota starting Sunday at 9 a.m. until 9 a.m. Tuesday.

Canada is battling more than 700 active wildfires across the country, roughly two-thirds of which are burning out of control, according to the Canadian Interagency Forest Fire Center (CIFFC). Smoke billowing from the blazes has blanketed central Canada and the northern U.S., prompting widespread air quality alerts.