Correctional Services spokesman Manelisi Wolela has denied allegations that student leader Mcebo Dla.
Former president Nelson Mandela, pictured, met finalists and winners of the fourth annual African Schools Debating Championship yesterday, his foundation said.
The finals of the week-long championship, in which South Africa beat Botswana, were held at the Nelson Mandela Foundation in Johannesburg on Monday.
"The competition saw debaters from South Africa, Botswana, Nigeria, Rwanda, Angola and Kenya pitting their skills against each other," the foundation said.
The foundation said a combined team of St Dominic's and Heronbridge colleges from the Free State, emerged as the top debating school team. - Sapa