The incident, caught on video, occurred at about 3.30pm on Jalan Kuching, Kuala Lumpur.
In the video, which has gone viral across several social media platforms, the driver of an unidentified car is seen swerving from his middle lane into the left lane and blocking another car.
As the other driver slows down to move into the middle lane, the driver of the unidentified car, once again, swerves back into the middle lane, forcing the other driver to switch back to the left lane.
The driver of the unidentified then starts to again move into the left lane to block the other car.