Chicago police said a passenger tried to light a cigarette and was asked to put it out by a flight attendant, NBC News reported. Shortly after, the man started pacing up and down the aisle. He grew increasingly belligerent and tried to light up again, CNN reported.
The flight was about an hour from landing in Philadelphia when it was diverted to Chicago, where the man was escorted off the plane and taken into federal custody, NBC News reported. It is unclear whether charges will be filed.