Schaumburg police, who did not immediately respond to a request for comment Friday, told CBS Chicago that no shots were fired. Several stores had reportedly been placed on lockdown. No major injuries were reported.
A video posted to social media by another mall-goer, Gloria Desiato, documented the initial moments of the frightening scene.
In the video, Desiato is Snapchatting her boyfriend when loud screeching noises and several screams punctuate the narrative. The car had just crashed into the front of the Sears store, Gloria later explained on Twitter.
Thinking the loud noise was the sound of gunshots, she raced to her car in the parking lot and sped off.
"My instinct was to get as far away as possible," she said. "I think Woodfield Mall is a safe zone for a lot of people - it's a normal mall, that's why I felt comfortable being there alone - and that's why this is just so shocking."