China on Friday again warned authorities in the United States that they risked damaging Sino-U.S. relations by their approach to Taiwan.

Ma Xiaoguang, a spokesperson with the State Council Taiwan Affairs Office, made the remarks when responding to the passing of the TAIPEI Act by the U.S. Senate Foreign Affairs Committee. 

The U.S. side should stop interfering in Taiwan-related issues so as not to damage bilateral relations as well as peace and stability across the Taiwan Strait, he stressed. 

When responding to the same question on Thursday, Chinese Foreign Ministry voiced strong opposition to the act, pointing out the proposed act seriously violates the one-China principle and the three China-U.S. joint communiques and international law and basic norms governing international relations, and grossly interferes in China's internal affairs. 

Ma on Thursday also warned that U.S. arms sales to Taiwan will further damage peace and stability in the Taiwan Strait, when asked about the unilateral memo recently declassified by Washington, which "legitimates" U.S. arms sales to Taiwan.

The document outlined former U.S. president Ronald Reagan's understanding of the joint communique signed by the two sides on August 17, 1982, also known as the August 17 Communique. It was stated that "the quality and quantity of the arms provided by the United States to Taiwan depend entirely on the threat posed by China."

"The content of the so-called memo has seriously violated the one-China principle and the regulations of three Sino-U.S. Joint Communiques," reiterated Ma, adding that the document is "totally wrong and serves no means."

The peaceful development of cross-Strait relations is the common aspiration of compatriots on both sides of the strait, he said. 

Ma highlighted China's determination to defend its national sovereignty and territorial integrity.

China must and will eventually achieve national reunification, he said, adding that it's the trend of history, which can never be blocked by anyone or any force.