Wildfires smoke: New York’s LaGuardia delays flights as Canada forest fires continue to burn – live

US aviation authority says flights affected by low visibility due to smoke from hundreds of fires in Canada’s worst-ever start to wildfire season

• Tell us: how are wildfires in Canada and smoke in the US affecting you?

Millions of people across North America woke up to orange skies and smoky air as air quality alerts continued across the US and Canada.

People were urged to mask up to protect their lungs from breathing in too much polluted air.