Southbound Red Line trains headed toward 95th were being rerouted Thursday afternoon after a worker was injured on the tracks, authorities said.
The Chicago Fire Department said a worker fell from a ladder at North and Clybourne and was transported in fair-to-serious condition.
The Chicago Transit Authority initially said Red Line trains were standing at North/Clybourn due to a sick customer.
Trains headed toward 95th were later being rerouted to the elevated tracks between Fullerton and Cermak-Chinatown. By 1:15 p.m., trains were returning to their normal routes, the transit agency said.