Transport minister Loke Siew Fook said the derailed train would be removed today, allowing repair work on the track near the Chan Sow Lin station to begin.

Loke said train speeds would be controlled when services resume, while coaches travelling from Ampang towards Sentul Timur would continue to stop at Chan Sow Lin for the next few days to facilitate repair work.

At a press conference after visiting the site today, he said preliminary investigations indicated that a switch box malfunction caused the derailment, but the exact cause of the switch system failure has yet to be determined.

“The first carriage was on the correct track, but the carriages behind it were directed onto another track. The force from the rear carriages pulled the front carriage off the track, causing the first and second carriages to derail,” he said.

All 25 passengers on board were safely evacuated, with no injuries reported.

Loke said his ministry has established an independent task force to determine whether the incident was caused by human error, a system failure, or other factors.

The task force has been given 30 days to submit its findings, with its report to be made public.

The Land Public Transport Agency (Apad) has opened its own investigation into the incident.

Describing the derailment as a serious incident, Loke said investigators would examine system logs, signalling systems, maintenance records, control centre operations, and the personnel involved.

“We were fortunate that nobody was injured. A derailment can potentially lead to a major disaster,” he said.