Trains are running nearly an hour behind on the Metra BNSF line after frozen track switches caused delays on the West Side.
Trains in both directions were delayed beginning about 6:30 a.m. because of frozen switches near Cicero Avenue and Congress Parkway, according to Metra.
The switches were thawed out, but it caused trains to operate up to 55 minutes behind schedule, a Metra spokesperson said.
Some trains were operating as express and not making stops in both directions.
More information can be found at metra.com.