Two people were found dead in the undercarriage compartment of a JetBlue plane that had just landed at Fort Lauderdale-Hollywood International Airport in Florida after departing from JFK Airport in New York City, authorities said.

An investigation is underway after the shocking discovery was made at the airport’s Terminal 3 on Monday evening. Broward County sheriff’s deputies and a coroner were reportedly present.

a JetBlue spokesperson said The Independent The victims’ bodies were discovered during a “routine post-flight maintenance inspection” and both were already dead when they were found.

The deceased turned out to be men, but their identities have not yet been revealed by investigators. They are working to figure out how they got into the plane’s undercarriage compartment.

“This is a heartbreaking situation and we are committed to working closely with authorities to support their efforts to understand how this came to be,” the spokesman said.

According to the airline, the aircraft was last in use as Flight 1801 from New York.

Although it is not yet known whether the deceased attempted to hide while stowing away during the flight, it is not uncommon for people to use the wheel wells, nose wells and other unpressurized areas of aircraft to attempt to get on board aircraft Sneaking, an extremely dangerous practice that often leads to tragic results.

Reuters reports that anyone trying to hide in depressurized wheelhouses or cargo holds will face icy conditions, with temperatures potentially ranging from -58°F to -76°F.

They could also struggle for oxygen and risk being crushed by the wheels of a plane.

Despite the high death toll, some people have managed to survive their incredible ordeal. In recent years, cases have been reported at Paris, Amsterdam and Miami airports.