Pretoria - The South African Rail Commuter Cooperation (SRCC) has launched an investigation into the cause of the two train accidents on Monday which left many commuters injured.
The SRCC said investigations were underway and they would know by the end of the week what had caused the accidents.
The first accident occurred between the Lenasia and Midway stations south of Johannesburg shortly after 7am.
About 171 commuters, including a pregnant woman, were injured when a Johannesburg-bound Metrorail passenger train smashed into the back of another train.
According to Metrorail spokesperson Sibusiso Ngomane, the Vereeniging line has been re-opened and trains are running on schedule.
"Most of the injured were treated for minor injuries at the scene while others were transported to nearby hospitals," said Mr Ngomane.
With regard to the second train accident in Springs, Mr Ngomane said the technicians were still on the scene assessing the extent of the damage.
"We hope that the line will be re-opened later on Tuesday," said Mr Ngomane.
In the meantime, commuters are being transported by buses while the railway line is being fixed.
The incident left about 131 commuters injured.
