The crash involved a wrong-way driver, according to state troopers who responded to the scene just after 2 a.m. Domenica.
A van and a car hit one another head on, and both vehicles “became fully engulfed” by fire, state police said in a news release.
“There are seven confirmed fatalities at this time; one adult female and five children from the van and an adult female from the passenger vehicle,” ha detto il comunicato.
The crash was on I-90 westbound near milepost 33.5 in McHenry County, north of Chicago and near the Wisconsin border, hanno detto le autorità.
At least one additional person was airlifted to a hospital for “severe injuries.”
Police will provide an update “once more information becomes available,” ha detto il comunicato.