Police are investigating how a woman died in a baggage room at O'Hare International Airport.

Hundreds of teenagers and adults helped change the world nearly 60 years ago by marching for civil rights in Birmingham, Alabama.

Justin Sullivan/Getty ImagesCHICAGO (CNN) - A backpack emitting smoke aboard a stationary Southwest Airlines flight on Monday drew a response from the bomb squad at Chicago's Midway International Airport. Southwest said that Flight 285 to Austin, Texas, was in the process of boarding when smoke began showing around a customer's backpack. Flight attendants placed the backpack in a fire-resistant bag and asked the customers to leave the plane, the airline said. The flameproof bag was moved to the jetway, where Chicago police's bomb squad and arson unit responded. Chicago Fire Department spokesman Larry Langford told CNN that the passenger carrying the backpack heard a pop and then saw smoke coming from his backpack.