The body of a man was found on a plane at Salt Lake City International Airport on Monday evening, The Salt Lake Tribune reported.

The unconscious body of a 30-year-old man was found inside the engine cowl of a passenger plane just after 10 p.m. at Salt Lake City International Airport. according to The Salt Lake Tribune. Police said he was still alive when he was found, but he was pronounced dead at the scene after paramedics were unable to revive him, the newspaper reported. (Related: Trans actor faints at Delta Airlines gate after being 'misgendered')

The plane, which had 95 passengers already on board, was undergoing de-icing operations, the report said. CBS News. Officials said the man “sabotaged” one of the airport's stores to bypass security, then used an emergency exit to board the plane at the south end of the runway and crawl into the wing engine. Tribune. Police said Tuesday that the engine was running, the paper said.

The plane, a Delta Airbus A220-100, returned to the gate after the body was removed and the flight was canceled, according to CBS. The flight was originally scheduled to depart from Salt Lake City to San Francisco, but passengers were able to change their reservations and be reassigned to other flights, the newspaper reported.

Both Delta Air Lines and the Transportation Security Administration (TSA) are working with airport authorities and local police to investigate the incident, but have not released the man's name or the cause of his death, CBS said.

“Delta is fully cooperating with all aviation authorities and law enforcement agencies in their investigations, as nothing is more important than the safety and security of our customers and people,” a Delta spokesperson said, according to a CBS report. ” he said.