East Timor (officially the Democratic Republic of Timor-Leste) is a country in Southeast Asia. It comprises the eastern half of the islan of Timor, the nearby islands of Atauro and Jaco, and Oecussi-Ambeno, an exclave on the northwestern side of the island, within Indonesian West Timor. The small country of 15,410 km² (5,400 sq mi) is located about 640 km (400 mi) northwest of Darwin, Australia.