Like their contemporaries in Maravi, Mutapa had problems with the arriving Portuguese traders. The peak of this uneasy relationship was reached when the Portuguese attempted to influence the kingdoms internal affairs by establishing markets in the kingdom and converting the population to Christianity. This action caused outrage by the Muslim WaSwahili living in the capital, this chaos gave the Portuguese the excuse they were searching for to warrant an attack on the kingdom and try to control its gold mines and ivory routes. This attack failed when the Portuguese succumbed to disease along the Zambezi river.