Have you ever seen a bus travelling this fast in Singapore?

A motorcyclist was surprised when he saw a bus overtaking other vehicles on an expressway.

Facebook user Zhongming Wu posted a video of the bus in the SG Road Vigilante group on Mar 25.

He wrote: "The first time I saw a bus driving so fast in Singapore."

He added two more videos of the incident in the comments section of the post.

Although the speed of the bus is unclear, it was obviously travelling above the speed limit.

According to the Land Transport Authority, the speed limit for buses and coaches on expressways is 60kmh.

On roads, it is 50kmh.