While Finance Minister Pravin Gordhan delivers his mid term budget speech in Parliament, the situation has turned violent outside the precinct's gates.
Police have dispersed hundreds of protesting demonstrators who gathered outside the National Assembly in a call for free higher education.
Students and other demonstrators have scattered along Plein Street and Barrack Street, screaming, after police opened fire with stun grenades, rubber bullets and water cannons.
The police are attempting to drive protesters out of the city and Golden Arrow Bus Services has confirmed reports of its fleet being stoned.
Protesters have vowed to continue the shutdown of institutions despite Gordhan undertaking to look into their demands.
Earlier, Gordhan met with students briefly to accept and sign a memorandum of demands.