A train with 15 commuters on the Sengkang LRT line broke down last Friday, the first day of the Chinese New Year.
When contacted, SBS Transit said a light rail vehicle (LRV) on the Sengkang West loop stalled at 11.09am as it was approaching the Sengkang Town Centre station due to a power fault.
"At the time of the incident, a loud noise was heard due to a dislodged power collector shoe on the LRV. This caused the LRV to stall immediately as a safety feature."
No one was injured.
Another LRV was used to push the defective LRV out of the line so that services could resume on the Sengkang West inner loop.
Service was back up at about 1pm.
A video of the incident shared online shows passengers getting out of the train and walking on the tracks. The video, posted on the SBS (Sure Boh Singapore) Facebook page, shows one of the passengers carrying a child.
LRT services on the Sengkang West outer loop, which moves in the opposite direction and serves the same stations, were not affected by the disruption, SBS Transit said.
Ms Tammy Tan, SBS Transit's senior vice-president for corporate communications, said: "We apologise to affected commuters for the inconvenience caused. Meanwhile, we are investigating the cause of the fault."