An investigation is ongoing following the discovery of a body in a wheel compartment of a United Airlines flight that took off from Chicago and landed in Hawaii Tuesday. Flight 202 left O’Hare Christmas Eve.

Police say a body was found in one of the main landing gears of a United Airlines plane that arrived in Maui after taking off from Chicago Tuesday. United says the wheel well is only accessible from the outside.

A body was found in the wheel well of a United Airlines flight that departed Chicago’s O’Hare International Airport on Christmas Eve, the airline said in a statement. The body was found in the wheel well of one of the Boeing 787-10 aircraft’s main landing gears upon arrival in Maui,