A body was uncovered in the wheel well of an aircraft that touched down in Hawaii on Christmas Eve.

The United Airlines flight, which originated from Chicago, landed at Kahului Airport in Maui, where the corpse was discovered in the main landing gear, according to a statement from the airline issued to YSL News on Wednesday.

The airline indicated that “the wheel well was accessible only from the exterior of the aircraft. Currently, it remains unclear how or when this individual reached the wheel well.” They are collaborating with law enforcement as they investigate the incident.

On Wednesday, the Maui Police Department confirmed to YSL News that they are “actively looking into the discovery of a deceased individual on an arriving flight from the mainland.”

At this moment, police have not released any further information.