TOKYO - China's declaration of an air defence identification zone that includes the area above disputed islands is a dangerous move that could cause serious problems, Japanese Prime Minister Shinzo Abe said Monday.
"I am strongly concerned as it is a profoundly dangerous act that may cause unintended consequences," Abe told parliament, reports said.
The comments are the first from the premier on the issue since Beijing on Saturday unilaterally announced it would require all aircraft flying over an area of the East China Sea to obey its orders.
They come as the foreign ministry in Tokyo says the declaration has "no validity whatsoever in Japan".
"Japan will ask China to restrain itself while we continue cooperating with the international community," Abe said.