A crash involving a semi-truck and another car occurred in the outbound lanes of the Kennedy Expressway just past Division Street.
Debris from the crash ended up on nearby Metra tracks, which are used by the Metra Union Pacific North and Union Pacific Northwest lines.
Metra said trains on those lines will not run past Clybourn until they can assess the tracks.Shortly after 5:15 a.m., Metra said the tracks were assessed and trains can continue to move through.
LIVE TRAFFIC: Check out the latest conditions on our live traffic map