Jacob Zuma has been re-elected as leader of South Africa’s governing African National Congress. He received an overwhelming majority of votes cast by some 4,000 delegates at the party’s Mangaung conference. He had been favourite to secure the leadership after he was challenged for the top job by his deputy Kgalema Motlanthe. Mr Motlanthe has been replaced by anti-apartheid era hero Cyril Ramaphosa as deputy president. The ANC, which has governed South Africa since white minority rule ended in 1994, is widely expected to win nationwide elections due in 2014. Meanwhile, four white men have appeared in court accused of being part of a right-wing extremist plot to bomb the ANC conference. The men were arrested on Monday in raids across the country and reportedly face treason and terrorism charges.