CHICAGO (AP) — Authorities say they're looking into whether faulty brakes, signals or human error may have caused a Chicago public-transit train to jump the tracks and scale an escalator at O'Hare International Airport.
A Chicago Transit Authority train car rests on an escalator at the O'Hare Airport station after it derailed early Monday, March 24, 2014, in Chicago. More than 30 people were injured after the train "climbed over the last stop, jumped up on the sidewalk and then went up the stairs and escalator," according to Chicago Fire Commissioner Jose Santiago. (AP Photo/NBC Chicago, Kenneth Webster)
National Transportation Safety Board investigator Tim DePaepe said at a news conference Monday that officials will interview the train's operator and look at her routine over the last few days. She is still in the hospital.
The early-morning accident on the Blue Line injured 32 people. None had life-threatening injuries.
DePaepe also says there is video footage available from a camera in the station and one mounted on the front of the train.
The derailment happened just before 3 a.m., which helped prevent more injuries in an underground station that's usually packed with travelers.