* Editor's note: This article is updated each time new information becomes available.
JOHANNESBURG - The death toll in a head-on collision on the N4 in Mpumalanga has risen to six.
The crash between a sport utility vehicle and a bakkie occurred on the stretch between Machadodorp and Belfast.
One of the injured victims succumbed to serious injuries while being treated at a hospital in Belfast.
Transport authorities are investigating the cause of the incident, but can't rule out reckless driving.
Community Safety MEC Jackie Macie has reiterated the call to motorists to adhere to rules and stick to the speed limit.