CONYERS, Ga. — A large chemical fire broke out early Sunday at a lab in Conyers and has been sending a jarring plume of black smoke into the air all day, with much of the city in an evacuation zone. RELATED: 'I was very, very startled' | Resident describes early morning wake-up from police, evacuation over Conyers chemical fire

(TND) — An evacuation zone has been set up as authorities deal with a fire at a Georgia chemical facility. A fire at the BioLab plant in Rockdale County, just east of Atlanta, has also prompted a shelter-in-place order for some residents and some road closures.