A taron kolin kungiyartarayyar Afirka karo na 31 da aka yi makon jiya a Mauritania,shugabannin kasashen Afirka sun ce suna son su hana sace karin dubban miliyoyin dala ta wajen ganin an soke sirri dake tattare da ajiyar banki da kuma rangwamen haraji a kasashen ketare.