Statement in full below:
This morning at 8.18am, a train heading in the direction of Tuas Link Station stalled at Joo Koon Station. At 8.19am, a second train stopped behind the first faulty train.
At 8.20am, the second train moved forward unexpectedly, and came into contact with the first train. 23 passengers and 2 SMRT staff sustained light to moderate injuries, and have been conveyed to Ng Teng Fong Hospital and National University Hospital.
SMRT and LTA are investigating the incident.