Riot police intervenes during South African election rally South Africa's heated election campaign escalated into violence Wednesday, as Johannesburg police fired rubber bullets and stun grenades to stop armed supporters of the ruling ANC from attacking an opposition rally. African National Congress activists hurled Molotov cocktails and bricks at police and members of the Democratic Alliance (DA) who held a march for jobs near the ANC's headquarters in the city centre. Images and soundbites of ANC supporters and riot police