Equatorial Guinea, officially the Republic of Equatorial Guinea, is a country in Central Africa. One of the smallest countries in continental Africa, Equatorial Guinea comprises a mainland territory known as Río Muni (including several offshore islands); the island of Bioko (formerly Fernando Pó), where the capital, Malabo (formerly Santa Isabel) is located; and the island of Annobón in the South Atlantic Ocean. Formerly the Spanish colony of Spanish Guinea, its post-independence name is suggestive of its location near both the equator and the Gulf of Guinea. It is one of the territories in mainland Africa where Spanish is an official language, besides the Spanish exclaves of Ceuta and Melilla, and the UN-recognised but Moroccan-occupied Sahrawi Arab Democratic Republic (Western Sahara).