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 were evacuated and others told to shelter in place after a fire at a chemical plant. Fire Chief Marian McDaniel told reporters that a sprinkler head malfunctioned around 5 a.