Plenty of questions still remain two days after authorities discovered a dead body in the wheel well of a United Airlines aircraft in Hawaii.

It was an unsettling and tragic discovery on Christmas Eve when the body of a dead man was discovered inside the wheel well of a United Airlines flight from Chicago after landing on Maui. The incident remains under investigation,

At this time, it is not clear how or when the person accessed the wheel well,” the airline said, noting it is working with law enforcement on the incident.