A security guard was caught punching a disabled man unconscious and then stamping on his chest.
The brutal attack was filmed by security cameras at the entrance to a supermarket.
The disabled man is seen using a locker in the lobby when the attacker comes up beside him and floors him with one heavy punch to the head.
With the victim lying on the floor, the guard stomps on his chest.
The clip ends with the attacker dragging his victim into a sitting position.
Local media reported that the victim was also employed by the supermarket in Kelantan, north-western Malaysia, and that he and his attacker had argued shortly before the video, which was seen almost 600,000 times after leaking online, was recorded.
The nature of the unnamed victim's disability was not reported.