South Africa's Zulu-led opposition party has begun its election campaign amidst fears of street violence. About 20,000 supporters joined a rally in Durban to hear the leader of the Inkatha Freedom Party (IFP), Chief Mangosuthu Buthelezi, speak on Sunday. Inkatha is trying to prevent the ANC - which controls the national government - from taking power in the province of KwaZulu Natal. Thousands died in fighting between the Inkatha and the ANC in the early 1990s.