Chinese and Japanese aircraft were involved in a standoff in the skies above the Diaoyu Islands on Thursday. Special: Diaoyu Islands Dispute
Sino-Japanese relations have perhaps hit the lowest point this year, coinciding with the 75th Anniversary of the Nanjing Massacre that falls on Dec 13.
China on Tuesday published a pamphlet featuring standardized names of the Diaoyu Island and its affiliated islets.
China has expressed serious concern and firm opposition to a U.S. bill that regards China's territory as under the authority of a U.S.-Japan security pact.
As ties between China and Japan plunge to their lowest in decades, an amendment passed by the US Senate to make the Diaoyu Islands covered by a US-Japan security pact will boomerang.
A fleet of Chinese warships head to the Pacific for routine drills on Nov 28, 2012, passing through MiyakoStrait.
Japanese automakers have started to see their sales in China rebound after Japan's illegal "purchase" of the Diaoyu Islands caused sales to decline sharply.
Special: Diaoyu Islands Dispute
Actions taken by China in response to Japan's illegal "purchase" of the Diaoyu Islands are "proper and necessary," Foreign Ministry spokeswoman Hua Chunying said on Friday.
Japan is urged not to do anything that will harm regional security and stability as right-wing forces rise in the country ahead of an election next month, a Foreign Ministry spokeswoman said on Friday.
Sovereignty protection 'proper and necessary': FM Special: Diaoyu Islands Dispute
A spokeswoman for China's Foreign Ministry on Thursday reiterated that the country has never accepted Japan's so-called existence on, or control of, the sea area adjacent to the Diaoyu Islands.
China vows to maintain territorial sovereignty
New Japanese ambassador to China named
No external pressure can shake the strong will and determination of the Chinese government and people to maintain territorial sovereignty.
China rejects Japan's 'control' of Diaoyu waters
New Japanese ambassador to China named
Philippines risks flaring tensions with island talks
The Japanese government officially approved the appointment of Masato Kitera as its new ambassador to China at a cabinet meeting Thursday morning.
Japanese exports to China fall amid islands row