Schaumburg police said officers responded to Schaumburg Regional Airport for a disturbance involving a man with a gun around 2:30 p.m.
Police said the man was in a restricted parking area at the airport on West Irving Park Road, and he was talking with airport employees.
Officers took the man into custody.
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No one was hurt, and airport operations were not disrupted.
Police said this was an isolated incident, and they are investigating.
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