Transport minister Anthony Loke has ordered an immediate probe into a multi-vehicle crash on the North-South Highway near Ayer Keroh services.
The accident resulted in seven deaths and 33 injuries.
Preliminary investigations revealed that the accident was caused by a detached trailer lorry tyre, leading to a tour bus swerving and crashing into three vehicles from the opposite direction.
Loke expressed condolences to the families and instructed the Road Transport Department (JPJ) to conduct a detailed investigation and take appropriate action against the companies involved.