Thousands of people were told to stay home with their windows shut Monday after a fire at a Georgia industrial plant caused a chemical reaction that prompted around 17,000 people to evacuate Sunday and left potentially harmful chlorine lingering in the air.

More than 90,000 residents in a county east of Atlanta were told to keep sheltering in place Monday and businesses were told to stay closed a day after a chemical plant fire sent a massive plume of dark smoke high into the sky that could been seen for miles.