In the west and highland areas where the Spanish settled, the indigenous population was almost completely wiped out by the rapid spread of new diseases brought by the Spaniards, for which the native population had no immunity, and the virtual enslavement of the remainder of the indigenous people. In the east, where the Europeans did not settle, most indigenous groups survived. The English introduced guns and ammunition to one of the local peoples, the Bawihka, who lived in northeast Nicaragua. The Bawihka later intermarried with runaway slaves from Britain's Caribbean possessions, and the resulting population, with its access to superior weapons, began to expand its territory and push other indigenous groups into the interior. This Afro-indigenous group became known to the Europeans as Miskito, and the displaced survivors of their expansionist activities were called the Mayangna.