A collision was reported at 8am this morning, 15 November, when a stationary train was hit by an SMRT train at the Joo Koon MRT station.
SCDF said it was alerted at 8.33 am to the accident at the station on the west-bound direction towards the Tuas Link.
SMRT and LTA added that they are investigating the incident.
The Joo Koon MRT station is on the East-West Line.
Mr Ng, whose journey from Pioneer to Joo Koon took 40 minutes, realised something was wrong only when he saw commuters queueing to get out of the affected trains, and spotted police and SCDF officers at the station.
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"At 8.20am, the second train moved forward unexpectedly, and came into contact with the first train", the statement said.
A female employee in her 30s who works at a snack shop in FairPrice Hub, next to Joo Koon station, said she learnt of the incident from some customers. Passengers were treated for head injuries, spinal injuries, fractures and minor bruises among other injuries.
In August 1993, a damaged rubber ring set off a chain of events that led to the collision between two trains at Clementi MRT station, leaving about 160 passengers injured.
Facebook user Mei Anne wrote that she was a passenger on one of the trains, and hurt her back as a result of the collision. At least 10 emergency vehicles were seen outside the station. Singapore's mass transit system has been strained as the population burgeoned to more than 5.6 million from under 4 million in less than two decades, leading to multiple breakdowns especially in the past six years.
The accident, which took place at 7.50am, left 156 injured commuters.