Tshwane emergency services spokesperson Johan Pieterse said the pupils were at a school camp in Rooiwal in the north of the city when they fell ill on Wednesday, Rekord North reported.
“At this stage it could not be confirmed whether it was food poisoning. Medics on the scene said it could have been dehydration,” added Pieterse.
He said the hospital would conduct tests in a bid to determine what caused the children to fall ill.
Earlier this year, 18 pupils were admitted to hospital for food poisoning in Peddie, Eastern Cape.
The provincial health department said the pupils from Pumla High School had experienced stomach cramps, headaches and vomiting after eating chocolates sold by a hawker.
The pupils were later taken to Nompumelelo Hospital for treatment.
– Caxton News Service