WARNING: Footage not for sensitive viewers.
A motorist has captured a horrific accident happen on a freeway, just seconds after warning the other party of impending danger.
The shocking footage shows a minivan stuck in the middle of a busy highway and two people trying to direct approaching cars away from the vehicle.
The witness can be heard urging them to move the car before anything happens.
As the witness appeals to the motorists, the sound of another vehicle crashing into the stationary vehicle is heard.
It is still unclear if anyone was hurt in the accident.
Watch the footage below: