You don't see THIS everyday.

Luckily, no one was hurt in this bizarre incident. It all happened Saturday afternoon on the Broadway off-ramp just after I-84 in Boise.

According to KTVB, the driver of the vehicle pulled over after the car started smoking. Once all the occupants were out of the vehicle, the car began rolling down the road.

Officials told KTVB, that they "believe either the brake was not fully set, or the fire melted the brake, causing it to malfunction."

Check out the footage below: