SMRT Corp Ltd said that the second train abruptly moved and collided with the train in front of it. "This morning at 8.18am, a train heading in the direction of Tuas Link Station stalled at Joo Koon Station. "At 8.20am, the second train moved forward unexpectedly, and came into contact with the first train. The last time that Singapore MRT trains collided was in Aug 5, 1993 when two trains at the Clementi station collided and injured 156 commuters. SMRT staff at the scene where two trains collided at Joo Koon Mass Rapid Transit (MRT) station.

Source: New Strait Times November 15, 2017 12:56 UTC