Milwaukee Police are investigating a serious crash that happened on December 6th, around 1:30 p.m. at N. 12th Street and W. Walnut Street. A Chevy Malibu failed to stop for a traffic signal and caused a multi-vehicle crash. The driver fled the scene. The driver of another vehicle in the crash, a 22-year old Milwaukee woman, was taken to the hospital where she continues to receive treatment for life-threatening injuries. MPD’s investigation is ongoing and a known suspect is being sought.