(CBS) -- A bag being loaded onto an airplane at Midway Airport exploded after it was run over by a luggage vehicle, according to Chicago police.
The bag was being loaded into Volaris Flight 943 around 12:15 p.m. No injuries or damage to the plane have been reported.
Chicago police said a cell phone battery or charger may have been the cause. TSA policy states batteries and chargers should not be packed in checked baggage.
The Chicago Bomb Squad cleared the scene shortly before 1 p..m.
The airport was not evacuated.
"Upon investigation the incident was determined not to be a threat to the public, and no injuries or damage to the aircraft were reported," the Chicago Department of Aviation said in a statement.
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