Pretoria police said Melanie Minnie, a faculty member at Rietfontein Nursery School, was pulled over in her Renault Clio and officers found she was driving 19 children back to the school from a local shopping center, The Mirror, London, reported Monday.
Police said three children were in the front seat, 10 were in the backseat and six were found riding in the boot of the car. It was unclear whether any of the children were wearing seatbelts.
The woman told officers she had already ferried a carload of 10 children back to the school.
"It was the first time we went on an outing, and the last. I'll never do it again," Minnie told police.
Minnie was fined about $160 for overloading her car.