Okinawa Prefecture (沖縄県, Japanese: Okinawa-ken^?, Okinawan: Uchinaa-ken) is one of Japan's southern prefectures. It consists of hundreds of the Ryukyu Islands in a chain over 1,000 kilometres (620 mi) long, which extends southwest from Kyūshū (the southwesternmost of Japan's main four islands) to Taiwan. Okinawa's capital, Naha, is located in the southern part of Okinawa Island. The disputed Senkaku Islands (Mandarin: Diaoyu Islands) are administered as part of Okinawa Prefecture.