Smoke from hundreds of wildfires burning in Canada hung in the northeastern United States’ atmosphere, posing a health risk to sensitive groups on Tuesday, June 6, the National Weather Service (NWS) warned.

Storyful editor Rob McDonagh recorded this footage of the New York City skyline from Brooklyn on Tuesday afternoon.

The NWS said thicker smoke could be expected over Lake Ontario and upstate New York late Tuesday afternoon into the early evening. The agency warned that “plummeting” air quality could have hazardous effects on sensitive groups. Credit: Rob McDonagh via Storyful