Thirteen people were injured in three separate crashes involving 10 vehicles early Saturday on I-94 in Jefferson County, officials said.
The first accident happened just after 8:30 a.m. when a westbound Pontiac Grand Prix drifted to the median shoulder near mile marker 254. The driver overcorrected and lost control, hitting the guardrail.
The driver suffered no injuries, but caused a second crash involving a total of four vehicles and resulting in six non-life-threatening injuries.
The second crash caused a major backup, which resulted in a third crash about a mile down the road involving a total of five cars, seven people were hurt in that pileup and were transported to the hospital with non-life-threatening injuries.
The Jefferson County Sheriff’s Department is investigating the initial crash.
The freeway was backed up for 8 1/2 miles as a result of the crashes.