CHICAGO, Dec. 23 (Xinhua) -- A shotgun was found under a car on the third floor of the parking garage at Chicago's O'Hare International Airport in the U.S. state of Illinois on Saturday afternoon.

The shotgun appeared to be brand-new and was unloaded.

Video from the scene shows the gun partly underneath a silver sedan in a parking space near the outer barrier of the garage.

At least two Chicago police vehicles were are shown at the scene, and two security guards or officers can be seen speaking to an officer in one of the vehicles, Chicago Tribune reported.