Gauteng MEC for roads and transport Ismail Vadi has called on the Passenger Rail Agency of SA and the Railway Safety Regulator to "urgently investigate" the cause of the crash.
Vadi said urgent measures must also be implemented to improve commuters’ safety on trains.
“We are deeply shocked by this tragic accident so early in the new year.
"We would like to express our heartfelt condolences to the families of the deceased and wish those injured a speedy recovery," Vadi said.
President Cyril Ramaphosa sent his condolences to the crash victims.
“Our thoughts are with those who lost their lives and their families. To the injured I would like to wish you all a speedy recovery,” Ramaphosa said.
“I would like to also encourage emergency services team on the scene to do all in their powers to help those who are still trapped under the train.”
Transport minister Blade Nzimande, Prasa and the Railway Safety Regulator will host a media briefing on Tuesday at 5pm.