The woman killed on Sunday morning has been identified as Lyn Trinh Chieng, 56, of St. Louis.
Chieng died at the scene at about 7 a.m. Sunday, when a wrong-way driver crashed into her vehicle on Interstate 64 near Kingshighway in Washington Park.
Illinois State Police are still investigating the crash, spokesman Calvin Dye Jr. said Monday.
The at-fault driver, a 29-year-old man from O’Fallon, collided with another vehicle driven by a woman on the interstate near Washington Park and East St. Louis, police said. He has not been charged.
The crash was the second wrong-way driver fatality in four days, Dye said, and the 165th crash District 11 Troopers have responded to since the beginning of 2018.