A video that appears to show a Tesla Model S driving at speed on a road with no one in the driver's seat circulated on social media on Tuesday night.

The luxury electric car appeared to be operating on Autopilot, Tesla's semi-autonomous-driving technology designed to steer, accelerate, brake, and change lanes with driver supervision.

At one point in the video, a camera pans around the cabin to reveal a person lying down in the back seat.

Videos showing Tesla drivers asleep or otherwise preoccupied behind the steering wheel are fairly common, even as the carmaker implores its customers to remain in control of their vehicles while using Autopilot.

A video that appears to show a Tesla Model S driving at speed on a road with no one in the driver's seat circulated on social media on Tuesday night.

The luxury electric car appeared to be operating on Autopilot, Tesla's semi-autonomous-driving technology designed to steer, accelerate, brake, and change lanes with driver supervision.

At one point in the video, the camera pans toward the windshield to show that the car is traveling down a two-lane road. The number 115 can be seen on the digital instrument cluster, but it was not immediately clear whether that represented miles per hour or kilometers per hour.

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A beverage holder containing a bottled drink is attached to the car's steering wheel.

The camera then turns away from the Model S's empty driver's seat to reveal a person lying down on the back seat.

Videos showing Tesla drivers asleep or otherwise preoccupied behind the steering wheel are fairly common, even as the carmaker implores its customers to remain in control of their vehicles while using Autopilot.

The system requires drivers to keep their hands on the steering wheel and activates a series of warnings if it detects no steering feedback from the driver. If the driver does not respond, the system deactivates, slows the vehicle to a stop, and turns on the hazard lights.

Tesla declined to comment on the video Tuesday night.