On Sept 10, Foreign Minister Yang Jiechi summoned the Japanese Ambassador to China Uichiro Niwa to an urgent meeting and lodged stern representations on and strong protest against the Japanese government's illegal "purchase" of the Diaoyu Island.

Yang Jiechi pointed out that the Diaoyu Island and its affiliated islands have been China's inherent territory since ancient times.

This is supported by clear historical facts and jurisprudential evidence.