China is moving to safeguard its claims over the disputed islands in the East China Sea, known as Senkaku in Japan, and Diaoyu in China, after Japan's purchase of the islands on Tuesday.
After defining the boundaries of the territorial waters surrounding the disputed Islands,
China's permanent representative to the United Nations Li Baodong submitted related nautical charts to the United Nations on Friday, in order to weaken Japan's domination over the islands by making the international community aware of the dispute.
Meanwhile, China's Xinhua News Agency is reporting that six Chinese maritime surveillance ships began patrols around Diaoyu on Friday morning for the first time following Japan's nationalization of the islands.
The Japanese Coast Guard said that the ships had entered Japanese territorial waters.
Meanwhile, anti-Japanese sentiment in China is rising.
A picture posted online Thursday shows a car by Japanese automaker Honda being burnt in Shaghai by its owner, who said he carried out the act to show his anger against Japan.
The Japanese consulate-general says that six Japanese people have been attacked in Shanghai since Tuesday.
[Interview : Hong Lei, Chinese Foreign Ministry Spokesman ] "The Chinese people are feeling righteous indignation over Japan's wrongdoing, and are in strong support of the Chinese government's actions against Japan."
The Chinese vice commerce minister also said Japan's purchase of the islands will inevitably have a negative impact on Sino-Japanese economic and trade relations.
[Interview : Jiang Zengwei, Chinese Vice Minister of Commerce] "If Chinese consumers express their views against Japan's violation of China's territorial sovereignty -- in a reasonable manner -- I think it is both understandable and within their right."
Since China is Japan's largest trading partner, analysts say Japan has a lot to lose if Chinese consumers start boycotting Japanese products.
Heo Seung-ha, Arirang News.