It was long assumed that the third ethnically Aizi language, Apro ("Aproumu"), was Kru as well. However, now that it has been documented, Apro is classified as a Kwa language.[1]
References
^Douglas Boone, Silué Lamine, MaryAnne Augustin. "L'Utilisation du Français et de l'Adoukrou par les Aizi" (2002, Société Internationale de Linguistique, Côte d’Ivoire) online Ettien Koffi. Paradigm Shift in Language Planning and Policy: Game-Theoretic Solutions (2012, De Gruyter, pg. 152).