Johannesburg - A fourth police official was arrested for charges related to drug trafficking, local media reported Tuesday.
Earlier, police said the head of an organized crime unit and two of his subordinates were arrested on charges of theft, fraud and racketeering.
"They would take some of the consignment [of seized drugs] from the scene of the crime and sell it to drug lords," SAPA news agency quoted a spokeswoman for crime intelligence, Senior Superintendent Tummi Golding, as saying.