Taxi drivers may find themselves with even fewer customers if some of them continue to assault drivers and passengers of ride-sharing services such as Uber and GrabCar, said Land Public Transport Commission (Spad) chief Syed Hamid Albar.

"We need to think before we act. Don't act according to emotions. The more we protest, the more people want to use Uber and Grabcar as all it takes is an application.

"I hope we don't act according to emotions or take action that goes against the law," he told journalists after a breaking of fast function in Bukit Kiara last night.

He was asked to comment on an incident on Monday where some taxi drivers confronted an Uber driver and his passengers, who were Iranian tourists in Kuala Lumpur.

Syed Hamid urged taxi drivers to safeguard their good name.

"People will become afraid to take taxi rides.

"I was very worried when I heard the incident involved foreign tourists.

"It is important that it does not tarnish the good name of our country in the eyes of tourists," he said.