Shares crash more than 20 percent in Greece after trading resumes at the Athens Stock Exchange for the first time in weeks. The mining company Vedanta faces prosecution from villagers in Zambia, claiming toxic waste from copper production has polluted water supplies. South Africa's gold industry faces a strike after miners rejected an increased pay offer. And the chief executive of the beer brewing company Heineken tells the BBC why the firm recorded a rise in profits in all markets, except Africa.