The protestors in Alexandra are demanding a re-run of the elections in their voting district.
The South African National Defence Force (SANDF) has been deployed to Alexandra township north of Johannesburg to try and contain a volatile situation.
Independent Electoral Commission (IEC) Chairperson Pansy Tlakula says objections will not affect the release of election results.
The ANC in Gauteng expressed its gratitude to voters on Friday for keeping the party in power.
COPE President Mosiuoa Lekota has lauded the EFF for their achievement after they have become the third biggest party in the country.
Agang SA leader Mamphela Ramphele says South Africans must respect the outcome of the general elections and continue to cherish democracy.
Cosatu congratulated the ANC on Friday on its election victory, but warned against complacency by its alliance partner.
The Economic Freedom Fighters is the new official opposition in the North West.
All 20 political parties that contested the elections, except the ANC, have accepted the IEC's decision to exclude votes from Tickeyline in Limpopo.
The Independent Electoral Commission would not confirm if President Jacob Zuma would address the elections results announcement gathering on Saturday evening.
The IEC has something to smile about; it can keep more than R3 million in its bank account after as many as 18 political parties failed to get a seat in the National Assembly.
The Freedom Front Plus was satisfied with the preliminary number of votes it achieved, party leader Pieter Mulder said on Friday.
Chief Electoral Officer of the Electoral Commission of South Africa, Mosotho Moepya, on election issues.
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