A top KZN Correctional Services official was arrested for fraud following an investigation in the Kokstad Prison.
It is alleged that a state accountant defrauded the prison of thousands of rands by making false medical claims.
KZN Correctional Services spokeswoman Khazi Sithole said the department was alerted on January 8 and the man was arrested on January 10. She said the fraud was discovered through annual departmental audits and inspections.
It is believed that there could be other Correctional Services officials implicated, but Sithole declined to speculate on any possible relationship between them before the investigation is complete.
She promised that the department will act firmly against corruption, in line with its policy.