The Federal Motor Carrier Safety Administration (FMCSA) released dash cam footage of a rollover accident to illustrate the consequences faced by drivers who fail to use seatbelts.

The FMCSA provided insights into the events captured in the dash cam recording.

The driver, who is not wearing his safety belt, is driving on a divided highway. He is drowsy and loses control of this vehicle. He crashes into the guard rail on the right shoulder and then spins out of control back across the highway. He rolls and crashes against the median guardrail. During this sequence, the driver, because he is not wearing his safety belt, is tossed around the cab and ends up in the back seat, smashing his head on the rear-side window.

Check out the video below.