January 4, 2015

"China conducted a test flight to a new airport on Yongshu Jiao of Nansha Islands with a civil aircraft in order to test whether or not the facilities on it meet the standards for civil aviation, which falls completely within China's sovereignty, said Foreign Ministry spokesperson Hua Chunying on Saturday.

China has indisputable sovereignty over the Nansha Islands and their adjacent waters. The Chinese side will not accept the unfounded accusation from the Vietnamese side, according to Hua."

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http://www.ecns.cn/military/2016/01-04/194477.shtml