Air quality alerts have been issued across most of the Midwest, and hundreds of wildfires are burning across Canada.

Minneapolis faced severely degraded air quality, ranking among the worst globally due to smoke drifting from Canadian wildfires. The Air Quality Index reached unhealthy levels, prompting alerts across Minnesota and parts of Illinois,

The smoke is expected to remain over the northern and central Plains of the United States for the next couple of days, according to meteorologists.