
Police were called to Midway Airport to meet a Southwest Airlines flight.
The flight was Southwest 418 from Philadelphia to Chicago’s Midway Airport.
A source said a passenger removed her clothes and defecated on her seat.
The plane was taken out of service for cleaning.
Law enforcement and medical personnel responded upon landing.
Southwest Airlines apologized to passengers and emphasized safety as a top priority.
The incident comes amid other airline issues, including a recent Southwest flight evacuation in Houston due to an engine fire.