Durban - A 17-year-old pupil was killed by a 16-year-old outside a school in Ntabamhlophe near Estcourt on Monday.
Police spokesperson Captain Nqobile Gwala said the incident happened outside the gate of the Hlathikhulu High School in the Ntabamhlophe area. It is believed that the deceased was a pupil at the school.
Details were sketchy but Gwala said the 16-year-old was arrested by the police.
Police were investigating a case of murder and possession of a dangerous weapon, she said. It was not clear when the suspect is expected to appear in court.
The Mercury reported last month about concern at the spike in levels of violence at KZN schools.
This included assaults by pupils on other pupils, pupils on teachers and incidents of corporal punishment and sexual assaults on pupils by teachers
Early in August, a shocking video of a schoolgirl being violently assaulted by a male pupil at Siyathuthuka High School - in Inanda, north of Durban - emerged on Twitter.
Days later, the department released footage of vicious brawling - involving the use of pangas - at Richards Bay Secondary School on the North Coast.
Then pupils at George Campbell Technical High School in Durban started protesting against racism and videos of them pushing teachers while pulling their peers out of class, emerged.
Earlier this month two videos depicting corporal punishment incidents at KZN schools went viral on social media.
The department has condemned violence at schools and previously said it would beef up security.