At least one person was killed and several wounded when Guinean security forces opened fire to break up a riot in the bauxite mining hub of Boke, witnesses said on Wednesday. Boke has suffered waves of rioting rooted in a perceived failure of mining to raise living standards, despite 15-million tonnes of aluminium ore being extracted annually by the West African nation’s largest mining companies Societe Miniere de Boke (SMB) and Companie Bauxite de Guinee (CBG).