A man was found dead on a runway at Austin-Bergstrom International Airport after a plane landed and now the Federal Aviation Administration (FAA) is investigating why he was on the runway.

The airport confirmed via Twitter that a person was was struck and killed by a landing aircraft.

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The FAA said in a statement the pilot of the Southwest Airlines Flight 1392 reported seeing someone on the runway shortly after the Boeing 737 touched down from Dallas.

“I believe there might be a person on the runway,” the pilot said to Austin air traffic controllers, in audio provided to local television station KVUE by LiveATC.net.

“Where exactly do you see the man?,” the air traffic controller asked the pilot, who responded, “They are behind us now.” 

The plane landed in Austin at 8:12 p.m. on May 7.

According to the FAA, the driver of an airport operations vehicle later found the victim on the runway.

“An obviously deceased adult male was located with trauma by responders,” Austin Police Department told CNN. The victim was pronounced dead at 8:41 p.m.

Southwest Airlines said in a statement that the “aircraft maneuvered to avoid an individual who became visible” on the runway after the plane landed, adding the “aircraft quickly came to a safe stop, and the pilots reported the event to local air traffic controllers.”

The Austin Police Department does not believe the individual was a badged airport employee.

The plane had 53 passengers and five crew members on board.