A Chinese maritime surveillance ship sails near a group of disputed islands, administered by Japan, but claimed by China and Taiwan too, in the East China Sea on November 29, 2012.
Chinese maritime surveillance ships have reportedly entered the territorial waters of disputed islands claimed by both the country and Japan in the East China Sea.
Japan's coastguard said on Tuesday that two Chinese vessels had been spotted in waters of Kubashima, which is controlled by Tokyo, shortly after 1:00 p.m. (0400 GMT).
Kubashima is one of the islands in a chain, called the Senkakus by Japan and the Diaoyus by China, which are currently under the former’s administration, but claimed by China and Taiwan too. The uninhabited islands sit on top of valuable resources.
The territorial dispute between Tokyo and Beijing over the islands reached its peak in mid-September after Japan announced that it planned to buy the islands from their Japanese private owners.