DEERFIELD, Wis. (AP) -- Four people were killed and two more critically injured in a crash the Wisconsin State Patrol says was caused by a wrong-way driver on Interstate 94 near Deerfield.
Officers responded to a complaint of a sport utility vehicle being driven erratically about 10:15 p.m. Wednesday.
The SUV turned around and headed against traffic, colliding with two cars.
Three passengers in one car were pronounced dead at the scene -- 26-year-old and 28-year-old women from Milwaukee and a 26-year-old man from Waterloo.
The driver of that car suffered life-threatening injuries.
The driver of the other car died at the scene.
He was a 23-year-old man from Northbrook, Illinois.
The driver of the SUV was identified as a 32-year-old man from Waunakee.
He also suffered life-threatening injuries.
