The empty train was on a test run, the minister said.
Among the six critically injured include two who underwent brain surgery with a third needing cerebral resuscitation treatment.
Dang Wangi police department assistant commander Mohamad Zainal Abdullah said 47 individuals suffered serious injuries, while 166 were lightly injured.
The minister that a special investigation committee led by the Ministry of Transportation had been set up, while the Land Public Transport Agency will compile a technical report on the incident.
These buses run every 15 to 20 minutes and will take passengers between the two stations to any station.
As it turns out, a man-made error involving.