South Africa's ruling African National Congress (ANC) has suffered a crushing blow in municipal elections, securing just 30.76% of the national vote and leaving President Cyril Ramaphosa's party scrambling to retain control of key cities.

South African President Cyril Ramaphosa voted in Johannesburg on Wednesday, with the ruling African National Congress (ANC) facing a challenge to its control of major cities in local government elections.

A coalition of political forces, led by the United Socialist Party of Venezuela, secured sweeping wins in the just-concluded municipal elections in that country.

Sunday's elections in Venezuela saw an overwhelming victory for the Great Patriotic Pole, a coalition also supporting President Nicolas Maduro.

The City of Windhoek's election of office bearers had to be postponed to today after some councillors defied the instructions of the presiding officer.

The disruption happened a few minutes after the mayor and the deputy mayor handed over their mayoral regalia on Monday.