South Africa has criticized US President Donald Trump for a tweet in which he said the US State Department would investigate purported land seizures and the killing of farmers in the African country.

South Africa's President Cyril Ramaphosa cuts short a trip to Britain to deal with protests at home.

President Mnangagwa says Zimbabwe's first presidential and parliamentary elections since the end of Mugabe's long rule will take place in July.

South African lawmakers formally name Cyril Ramaphosa as new president after scandal-tainted Jacob Zuma resigns under intense pressure from his own party.