Trains on numerous Metra lines were delayed Wednesday due to issues with Positive Train Control systems, the agency said.

METRA service on the BNSF line was disrupted Thursday morning after a vehicle struck a bridge Thursday. As of 7:30 a.m., the METRA website posted service had resumed and inbound and outbound trains were on the move and operating with extensive delays. Commuters should monitor the website for updates.

A man was struck and killed by a Metra UP-NW train Friday afternoon, resulting in residual delays during the evening rush.

Authorities warned of "significant delays" for train and vehicle traffic in a northwest suburb after a person was struck and killed by a train Friday.