Four people have been killed and two others sustained injuries in a head-on collision between a sedan and a bakkie on the R510 road near Northam in Limpopo.

The injured have been taken to Amandelbult hospital. Transport department spokesperson Mike Maringa says the deceased, including the driver, were the occupants of the sedan.

Maringa says the driver of the sedan had apparently overtaken another vehicle in a solid barrier line thus colliding with an on-coming bakkie.