Commuters on board an MRT train were forced to disembark at Somerset MRT Station after a power bank had caught fire inside the cabin.
SMRT said in a statement on Wednesday that the incident happened on 24 May at about 12.10pm, on a north-bound train along the North South Line.
President of SMRT trains, Lam Sheau Kai, said that the fire was quickly put out by a commuter who was there at the time.
He said that their staff were on sit to assist and all commuters disembarked from the train as a safety precaution.
No commuters were injured or required medical aid.
Videos also emerged online showing commuters covering their mouths as smoke billowed around them, as they exited the train.
Lam added that the affected train was withdrawn to the depot for checks and that they are helping the Public Transport Security Command with their investigations.