Mali 's interim prime minister was arrested then resigned on television . Prime Minister Cheick Modibo Diarra holds U.S. citizenship . Comment: Diarra 's whereabouts are not known .
Mali 's interim prime minister was arrested then resigned on television . Prime Minister Cheick Modibo Diarra holds U.S. citizenship . Troops loyal to the former coup leader made the arrest . Diarra 's whereabouts are not known .