Authorities on Monday night ended a shelter-in-place order for more than 90,000 people east of Atlanta following a weekend chemical plant fire that sent a massive plume of dark smoke into the Georgia sky and led to complaints about a strong chemical smell and haze.

People in the northern part of Rockdale County were ordered to evacuate and others were told to shelter in place with windows and doors closed.

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.