Among those detained are the Azapo president Nkosi Molala, and Azanian Youth Organisation members Philly Mosupye, Thabo Sehume, Brutus Manana and Vicky Matlala, all from Pretoria.
In another swoop police are believed to have arrested over 50 black consciousness activists in Sobantu, near Pietermaritzburg, and more than half a dozen others in Kimberley.
Large meetings to commemorate the 11th anniversary of the Soweto uprising were held in these areas.
Azapo representative Lybon Mabasa said yesterday that there were over 300 Azapo members in detention.
This article originally appeared in the Weekly Mail newspaper