Seven other children were injured in the accident. 12 primary school children died in a road accident on Wednesday in South Africa as a minibus taking them to school overturned and caught fire after collision, officials said.The incident occurred on the N14 motorway near Merafong, about 70 kilometres west of Johannesburg, when another vehicle rammed the school bus from behind. Also, the driver of the minibus was found dead. The South African authorities said the victims were burnt beyond recognition. Seven other children were injured in the accident in the province of Gauteng. Road officials w…