Besides entities, cantons, and municipalities, Bosnia and Herzegovina also has four "official" cities. These are: Banja Luka, Mostar, Sarajevo and East Sarajevo. The territory and government of the cities of Banja Luka and Mostar corresponds to the municipalities of the same name, while the cities of Sarajevo and East Sarajevo officially consist of several municipalities. Cities have their own city government whose power is in between that of the municipalities and cantons (or the entity, in the case of Republika Srpska).