The N1 freeway, south of Johannesburg has been re-opened for traffic following in multi-vehicle collision on Sunday morning. Four people were killed and 23 others injured after a truck collided with a minibus taxi causing a pile up involving a bus and ten other vehicles.

Heavy mist reduced road visibility significantly at the time of the collision around 7 this morning. The cause of the crash has still to be investigated.

The collision happened on the N1 north between Grasmere toll plaza and the N12. Both sides of the highway were affected but the road has just been reopened to traffic.