(ZHANG JIANSONG)

Haijian 15 patrols waters around the Diaoyu Islands on September 14. Two Chinese surveillance ship fleets arrived there that day for a patrol and law enforcement mission. It was the first time for Chinese surveillance ships to patrol these waters after the Chinese Government announced the base points and baselines of the territorial waters of the Diaoyu Islands and their affiliated islets, as well as the names and coordinates of 17 base points on September 10.

These law enforcement and patrol activities are aimed at demonstrating China's jurisdiction over the Diaoyu Islands and their affiliated islets and ensuring the country's maritime interests, according to a government statement.