Ghanaian unions have called off a strike after the government promised to take measures to clean up Africa’s biggest gold producer’s small-scale mining sector.

China's Zijin Mining Group will buy the Akyem Gold Mine Project in Ghana from U.S.-based Newmont Corp for $1 billion, the companies said on Wednesday. The sale is a part of Newmont's ongoing programme to divest non-core assets as the company makes a strategic shift to focus on its tier one assets,

Ghana has a gold problem: illegal mines, known as 'galamsey', where men work without proper protective equipment. It threatens their lives – and the environment.