Four men appeared in the Botshabelo Magistrate's Court in connection with the deaths of four boys at a initiation school, Free State police said.
Constable Consolation Mokoale said case was postponed until July 11. The men, aged between 22 and 29, would remain in custody.
"A 17-year-old boy died on Friday on arrival at a local hospital, while three other boys, between the ages of 18 and 19, were found dead at the initiation school on Saturday."
The owner of the initiation school and two other men were arrested on Sunday. A teacher at the school was arrested on Monday.