Metra MD-W trains resumed service in Elgin, Illinois, early Thursday night after a police investigation.
Metra officials said inbound and outbound train service will run with normal service, making all scheduled stops to and from Big Timber Road.
Some trains may run with delays.
CBS News Chicago has reached out to Elgin police for more information on the investigation.
Commuters can check service alerts and updates on the Metra website.
