Inbound train no. 1214 struck the person around 6 a.m. in the western suburb, according to Metra spokeswoman Meg Reile. The person, female, was pronounced dead at the scene.
The train had no passengers at the time.
Metra said all inbound and outbound trains were halted after train #1214 struck a pedestrian. Shortly after 7 a.m., Metra said trains were running again with delays.
The station will be closed for several hours for an investigation.
Further details were not immediately available.
The Sun-Times Media Wire contributed to this report.