HALES CORNERS -- Hales Corners officials say three adults and an infant were injured in a crash near S. 108th Street and W. Edgerton Ave.
Officials say three vehicles were involved in the crash. Those injured were taken to the hospital, but are expected to be okay.
Police say one driver may not have been wearing a seat belt.
The driver of the initial striking vehicle told police she blacked out prior to the accident.
Police say the cause of the crash remains under investigation.