A person was killed in a crash Sunday on Interstate 57 on the South Side, and a good Samaritan who pulled over to help was injured in a hit-and-run, state police said.
Troopers responded to a rollover crash about 3:17 a.m. in the northbound lanes of I-57 near 107th Street, Illinois State Police said.
A person involved in that crash was pronounced dead, state police said.
Investigators learned a person who stopped to assist after the crash was struck by a vehicle that fled the scene, state police said.
They were hospitalized with injuries that were considered serious but not life-threatening, state police said.
All northbound lanes of I-57 were closed at 111th street as crews investigated and were reopened by 8:20 a.m., state police said.