Johannesburg - A man died, another was critically injured, and three others sustained serious injuries in a head-on collision in Durban, paramedics said on Monday.

The accident happened on the M7 between Bellville Road and the Northdene off-ramp in Malvern on Sunday night, Rescue Care spokesman Garrith Jamieson said.

He said it was alleged that one of the vehicles was driving against the flow of traffic.

Sapa