Original sentence: Many passengers feared for their lives believing the incident was related to a train bombings in Mumbai which had occurred earlier that same day.On July 11, 2006, a rear train car derailed causing a smokey fire in the Blue Line's Milwaukee-Dearborn-Congress Subway.Over a hundred lawsuits were filed by the victims, many of whom suffered from post traumtic stress syndrome as a result of the their protracted near-death experience in the Blue Line tunnel.The 1,000 passengers were forced to slowly evacuate in a smoke filled tunnel along a narrow ledge without any lighting or direction from the train's operator.The incident prompted heavy news coverage and a temporary stoppage of Chicago subway service.There were numerous injuries from smoke inhalation, including several serious injuries, but no fatalities
Edited sentence: On July 11, 2006, a rear derailment caused a smokey fire in the Blue Line's Milwaukee-Dearborn-Congress Subway.The comparatively minor incident prompted heavy news coverage and a temporary stoppage of Chicago subway service because it occurred hours after train bombings in Mumbai earlier the same day.There were injuries from smoke inhalation, but no fatalities