A 15-year-old pupil in Mankweng, Limpopo, was arrested on Tuesday morning for fatally stabbing a classmate at school.
"It is alleged that the two learners had a fight while playing within the school premises," said police spokesperson Col Moatshe Ngoepe.
"Subsequently the suspect produced a sharp instrument and stabbed the deceased before fleeing.
"The deceased was taken to the hospital but was certified dead on arrival."
The boy who died has been identified as 16-year-old David Metlape, grade 8 pupil at Robert Machaka Secondary School.
The suspect was tracked down to the top of a small hill, where the alleged murder weapon was found.
He will appear in the Mankweng Magistrate's Court soon.