A chemical plant fire southeast of Atlanta is still causing trouble two days later. Authorities on Tuesday alerted residents of the city's eastern suburbs to shelter in place again if a chemical cloud moves over their neighborhood.

More than 90,000 residents east of Atlanta were told to keep sheltering in place Monday, a day after the chemical plant fire. The haze and chemical smell had spread to Atlanta by Monday morning, prompting firefighters to use detectors to check the air quality in various parts of the city, Mayor Andre Dickens said.

Some residents east of Atlanta are still sheltering in place on Monday, while more than 17,000 have been evacuated a day after a fire at a chemical plant produced lingering dark smoke and haze in the air that could be seen from miles away.