China's patrol ships sail around Diaoyu Islands

China's official ships have reportedly sailed to the waters around the Diaoyu Islands. 'The KMT administration in Taiwan has also sent two ships to the area. The Diaoyu Islands is known in Japan as Senkakus. Japan also disputes Russia's sovereignty over the Kurils (or Northern Territories in Japan) and South Korea''s Dokdo (Takeshima in Japan).