BEIJING - China on Saturday dismissed allegations by some Japanese reports that it is to set up an Air Defense Identification Zone (ADIZ) over the South China Sea and expressed optimism over regional situation.

"In a general view, the Chinese side has yet to feel any air security threat from the ASEAN countries and is optimistic about its relations with the neighboring countries and the general situation in the South China Sea region," Foreign Ministry Spokesman Hong Lei said in a press release Saturday.

Earlier this week, the Asahi Shimbun daily of Japan reported that China has drafted proposals for the Air Defense Identification Zone over the South China Sea.

Hong said the right-wing forces of Japan have repeatedly clamored about the alleged plan of China to set up ADIZ over the South China Sea. He said this move is of ulterior motive and simply aimed to shift international attention from and cover up the plot to change Japan's pacifist constitution and expand its military power.

"We sternly warned these forces not to mislead public opinions with rumors and play up tensions for their own selfish benefit," Hong said.

Hong stressed that China and the Association of Southeast Asia Nations (ASEAN) share a bright future for their relations. He said China and the ASEAN countries are working together to implement the declaration on the conduct of parties in the South China Sea in a comprehensive and effective way to safeguard peace and stability in the region.

In response to reports about US officials' comments on the issue, Hong said China hopes the relevant parties remain cautious about their words and deeds, maintain a calm and objective stance, make joint efforts with China and make concrete contribution to peace, stability and security in the air and on sea of the region.

Hong said China, as a sovereign country, has all the legitimate rights to adopt all measures, including setting up ADIZ, to safeguard national security in response to the situation of air security. No one should make irresponsible comments on this, Hong said.