Correctional Services said that “matters are under control” at Johannesburg’s Sun City Prison on Wed.
TONIGHT Special Assignment, SABC3's investigative programme, travels to the diamond fields of Chiadzwa, near Mutare in eastern Zimbabwe.
This shocking report exposes the ongoing murder of civilians at the hands of soldiers, the looting of the gems by army syndicates and a thriving illegal trade in diamonds in the Mozambican border town of Vila de Manica.
Using hidden cameras the programme exposes how, in defiance of the Kimberley Process, the Zimbabwean government continues to disregard the rule of law.
It also exposes how since the discovery of a vast alluvial deposit of diamonds in 2000, Chiadzwa has become a site of lawlessness.
Officially all diamonds from the mine are sold through the Mineral Marketing Corporation of Zimbabwe, but behind this body is a thriving illegal trade that profits senior government officials and politicians.
Run by security forces and fronted by middlemen, these syndicates smuggled an estimated US$800million (about R6billion) worth of diamonds out of the country in one year alone. They rely on forced labour and torture to exert their control.
Last year at least 400 people were killed when the army used helicopters, teargas, dogs and automatic weapons to crack down on illegal miners.
Diamond revenues could provide Zimbabwe with as much as US$200million (about R1,5billion) a month, and could be used to fund the country's reconstruction after eight years of economic collapse.
Instead, they are smuggled out of the country, finding their way to Lebanon, the United Arab Emirates, India, Pakistan and Europe, among other destinations.
Zimbabwe risks being suspended from the Kimberley Process until it meets the minimum standards for the mining and selling of diamonds on the world market.
It is a move that would essentially ban international sales of the country's diamonds, dealing a major blow to President Robert Mugabe.
Zimbabwe's suspension from trading in diamonds is not a foregone conclusion.
The 72 countries participating in the Kimberley Process are expected to vote on the issue on November 2 in Windhoek, Namibia.
Special Assignment airs at 8.30pm.