While driving on the highway continuously for 3h, from Fahud to Marmul (639 km), the driver got drowsy which resulted in the vehicle drifting and hitting the barrier on the right side of the road. The driver sharply oversteered the vehicle to the left side in attempt to rectify the situation prior to the passenger side front tire puncturing. This has caused the driver to further lose control over the vehicle and drift off-road beyond the black top resulting in the vehicle rolling over.