“The incident on United flight 3411 was not in accordance with our standard operating procedure and the actions of the aviation security officer are obviously not condoned by the Department,” a spokesperson for the Chicago Department of Aviation told TIME. “That officer has been placed on leave effective today pending a thorough review of the situation.”
The spokesperson did not provide any other details of the decision or the incident itself. It was not clear how many officers were involved in the incident.
In a statement, the Chicago Police Department said Aviation officers were summoned to the aircraft after the passenger “became irate after he was asked to disembark from a flight that was oversold.”