In tonight's edition: Thousands turn out to opposition-organised protests in South Africa to express deepening frustration over the country's power crisis. Also, in a rare trial of a former president, ex-Mauritanian leader Mohamed Ould Abdel Aziz appears in court on corruption charges. Finally, faced with about 15,000 tonnes of "e-waste" dumped in landfills every year, Rwanda is focusing more resources on recycling old smartphones.