At least 31 wrecks occurred between 5 and 9:30 p.m., according to Georgia State Patrol Trooper 1st Class Matt MacDonald.
As of 10 p.m., I-20 westbound was still down to one lane, and traffic was backed up about three miles from mile marker 191 to the Bel Air Road exit, MacDonald said.
Once the first accident happened, others followed, including numerous cars and two tractor-trailers.
During the chain reaction of accidents, a white Isuzu wrecked. A man in that vehicle was airlifted to Medical College of Georgia hospital, and his condition was not known Thursday night. Two others were in the vehicle, according to MacDonald.
One other person was critically injured Thursday night and was in MCG’s Trauma Unit as of 11 p.m.
At least 15, and as many as 20, people were taken to area hospitals with injuries not believed to be life-threatening.
Staff Writer Meg Mirshak contributed to this report.