South African security forces say 87 people had been arrested in the last 12 hours across the country over public violence before planned protests by the left-wing Economic Freedom Fighters (EFF) party.
The EFF, the third largest party in the country, has called for a national shutdown to protest crippling power cuts and demand the resignation of President Cyril Ramaphosa.
“No one can stop a revolution,” EFF leader Julius Malema told supporters.
Ports, parliament, border crossings and the Johannesburg Stock Exchange, among others, will be targeted as key protesting points, Malema has said.
The party draws heavy support among poor and working-class Black South Africans who feel left out of the country’s prosperity since the governing African National Congress (ANC) ended white minority rule in 1994.
Authorities said there would be a heavy police presence to deal with any possible violence.