Howick - Three women who were sitting on the back of a bakkie were killed when they were struck by an unidentified object, paramedics said.
Nine other people on the back of the bakkie were injured, ER24 spokesperson Russel Meiring said.
"On assessment, paramedics found that three women had sustained multiple, fatal injuries. Unfortunately nothing could be done for the patients and they were declared dead on scene.
"The [injured] later told paramedics that the bakkie had passed the truck when the occupants were struck by an unidentified object," he said.
When paramedics arrived on the scene, they found the bakkie and the truck parked on the side of the P134 District Road in Howick.
It was still not clear what hit them.