In this photo provided by Japan Coast Guard, a Hong Kong fishing boat sails in the water, 52 kilometers (32 miles) west of the Uotsuri Island, one of the islands of Senkaku in Japanese and Diaoyu in Chinese, in East China Sea, Wednesday, Aug. 15, 2012. Hong Kong activists trying to reach the disputed islands claimed by Japan, China and Taiwan said Wednesday that they were being tailed by Japanese government ships trying to stop them, as territorial disputes continue to raise tensions among Asian powerhouses. (AP Photo/Japan Coast Guard) EDITORIAL USE ONLY