Officials have reopened the section of I-75 in Georgia at the site of a deadly pileup
in Ringgold, south of Chattanooga.
As of Friday morning, three of the four people killed in the accident that involved more 120 vehicles had been identified. Another 38 were injured, 11 of them critically or seriously. More than 400 emergency workers responded to the accident, which took place around 8 a.m. Eastern.
Crews spend Thursday night and Friday morning clearing away smashed vehicles, which stretched as long as a quarter mile along the route. Two of the approximately 20 tractor-trailers involved in the mishap were reported to be hazardous materials tankers, but no leaks were discovered.
CNN reports Catoosa County, Ga., Sheriff Phil Summers said Thursday afternoon that the crash was "not attributable to any type of driver error," but later, after officials had a chance to interview more of the drivers involved, he said both excessive speed and the fog were to blame.
Officials now say there were four separate crashes, two on each side of the interstate, that set off the chain reaction. Early reports indicated only one accident, where a vehicle crossed the median into the oncoming lane.
No criminal charges are expected in the investigation, which is expected to take several months.