SINGAPORE, Aug. 15 (Xinhua) -- Heavy smoke was seen from a train at Singapore's Tanjong Pagar metro station Monday afternoon, which was caused due to a leak of freon gas from the train's air-conditioning system, said train operator SMRT in a statement on Monday.
Pictures and videos of the train station filled with thick smoke were posted on Singapore's social media Monday afternoon. Witnesses told local media that an announcement was made, indicating that there had been a track fault when the incident occurred.
Commuters aboard the train were soon evacuated with the help of SMRT staff, according to Channel NewsAsia.
In a media statement, SMRT said the smoke was due to a leak of freon gas from the train's air-conditioning system, and the discharge of freon into the train tunnel "reduced visibility in parts of the station" when the platform screen doors were opened for passengers to leave the train.
The train operator added that their staff switched on the tunnel ventilation system immediately to disperse the odourless gas, and it will check the train's air-conditioning system.
According to another statement from the Singapore Police Force, no injuries were reported so far, and the police is now looking into the matter.
