Two members of the extreme right-wing group, Boeremag, Dirk Hanekom and Henk Van Zyl, were apprehended on a farm in Memel district, Free State. They were taken into custody a month after a warrant of arrest was issued against them. Only Hanekom was charged with treason and brought to trial with 21 other alleged members of the right-wing Boeremag at the Pretoria High Court on 19 May 2003. The Boeremag allegedly sought to stage a coup and replace the government with a Boer republic. Ten other men, including three South African Defence Force members, had already been arrested in connection with the alleged coup plot. Search for other members of this movement continued. The Boeremag treason trial is still continuing in the Pretoria High Court.

Click here to read more about the Boeremag

Click here to see Boeremag Chronology

Sources:

http://iafrica.com/news/sa/163721.htm

http://en.wikipedia.org/w/index.php?title=Dirk_Hanekom&action=edit

South African History Online