In one of the videos, another man tried to intervene after the commuter managed to open the train door slightly while the MRT train was in motion.
Pictures circulating on social media subsequently showed the commuter lying on the station platform floor, with Public Transport Security Command (TransCom) officers in close attendance. CNA understands that the platform was at Ang Mo Kio station.
Mr Lam said its station staff entered the train to investigate the matter, but the commuter was “uncooperative and turned aggressive”.
He added that the commuter also resisted attempts by station staff when advised to leave the train so that other commuters could continue with their journeys.
“We take a very serious view of such behaviours and TransCom was activated and arrived on site. We are assisting the police in their investigations.”