Two girls were killed when a wall collapsed on them in Kennedy Road in Clare Hills, Durban, on Monday afternoon.
The girls, 5 and 7, sustained major injuries and nothing more could be done for them by the time paramedics arrived around 16:00, said Rescue Care spokesperson, Garrith Jamieson.
A third girl was moderately injured in the collapse and rushed to hospital.
Kwazulu-Natal police spokesperson, Colonel Thembeka Mbele, said the wall was part of a driveway in Clare Estate.
She said it was believed that the children had been playing in the driveway when the collapse happened.
The police investigation would determine what led to the collapse.