a campaign of opposition to the Interim Constitution and April's election. 21 – Prisoners begin nationwide protests for the right to vote. 21 – Twenty-one prisoners are killed in a cell fire at the Queenstown Prison. 21 – About 2,000 prisoners break out of their cells and toyi-toyi in the courtyards at Pietermaritzburg Prison. 21 – 3,000 prisoners go on hunger strike, including 614 at East London, 29 at Krugersdorp, 148 at Port Shepstone, 16 at Pollsmoor (Cape Town) and 210 at Brandvlei. 21 – A bomb explodes at the offices of the National Party in the right-wing town of Ventersdorp. 22 – Ciskei military leader Brigadier Oupa Gqozo resigns. 24 – State President F.W de Klerk states that South African Defence Force troops could be deployed in KwaZulu-Natal. 26 – Right-wingers march in Pretoria in a show of strength and the Afrikaner Volkstaat and Conservative Party leader Ferdi Hartzenberg addresses the marchers at Church Square. 26 – KwaZulu Chief Minister Mangosuthu Buthelezi meets State President F.W de Klerk for talks about contingency planning for strife-torn KwaZulu-Natal. 26 – The home of African National Congress regional premier candidate Jacob Zuma is torched by a mob in Nxamalala, near Nkandla, in northern KwaZulu-Natal. 27 – Disgruntled nuclear and rocket scientists threaten to expose South Africa's closely guarded secrets about the arms programme unless they are paid RM4.5 in retrenchment benefits. 27 – South Africa is readmitted to the Olympic games by the International Olympic Committee. 28 – More than thirty people are killed and hundreds injured in battles in the Johannesburg area as tens of thousands of Zulus converge on the city centre to demonstrate their support for King Goodwill Zwelithini. 28 – The Shell House massacre occurs when security guards at Shell House, the African National Congress HQ in Jeppe Street, Johannesburg, open fire on demonstrators. 28 – More than 200 people are arrested in Phuthaditjhaba, QwaQwa after a march by thousands of public servants on the homeland's parliament deteriorated into violence and South African Defence Force troops are sent in. 29 – Mangosuthu Buthelezi states that the Inkatha Freedom Party will fight the African National Congress "to the finish" unless the elections are postponed. 29 – The Transitional Executive Council recommends emergency measures in KwaZulu-Natal. April 1 – A state of emergency is declared in KwaZulu-Natal. 6 – A joint committee consisting of the Independent Electoral Commission, KwaZulu and