Rapid Rail Sdn Bhd said in a statement that the malfunction was reported at about 5.30am.

“As a safety measure, trains travelling from Pasar Seni to Bangsar en route to Putra Heights are being manually operated, resulting in slower service between the two stations,” it said.

Rapid Rail also said that its engineering team was on site, carrying out repair works to restore normal operations as quickly as possible.

“To ensure passenger safety and smooth movement, auxiliary police and station staff have been deployed to station platforms to assist commuters. Regular announcements are also being made at stations regarding train schedules,” it said.

Passengers are advised to follow Rapid KL’s social media platforms for updates and information.

“We apologise for the inconvenience caused and greatly appreciate the patience and cooperation of all passengers,” Rapid Rail said.

A netizen had posted footage on X showing long queues of commuters at one of the LRT stations with auxiliary police on site.

In an update, Rapid Rail said the engineering team completed the preliminary phase of repairs at 10.56am and train services had resumed at around 11.10am.

The firm said that engineering and operations personnel would continue to monitor train movements throughout the day to ensure smooth operations on the Kelana Jaya line.

“Full repair works will be carried out after service hours to minimise disruption for passengers. A thorough investigation is also underway to determine the cause of the disruption and prevent similar incidents in the future,” it said in a Facebook post.