China's UN ambassador says a potential visit by the US House speaker to Chinese Taipei would undermine US-China ties and is considered dangerous and provocative.

Iran PressAmerica: A visit by US House of Representatives Speaker Nancy Pelosi to Chinese Taipei would undermine China and the United States' relationship, China's UN Ambassador Zhang Jun said on Monday.

According to Reuters, Pelosi was set to visit Chinese Taipei on Tuesday, three sources said, as the United States said it would not be intimidated by Chinese warnings to never "sit idly by" if she made the trip.

"Such a visit is apparently very much dangerous, very much provocative," Zhang told a news conference to mark the start of China's presidency of the UN Security Council for August. "If such a visit happens it will also undermine the relationship between China and the United States."

He also said that such a visit by Pelosi should not be compared to the last time a US House speaker visited the island claimed by Beijing in 1997.

"An early mistake does not make the following mistake legitimate," Zhang said. "Furthermore, the situation in Chinese Taipei is also changing with the support of some external forces."

"Taiwan's tendency towards independence is further developing. If we do not take appropriate, forceful action to stop it ... the situation might be even out of control," Zhang told reporters in New York.

He urged Washington to honor its commitment to the one-China principle, which he said US President Joe Biden reiterated during a call with Chinese leader Xi Jinping last week.

Beijing has issued several warnings about repercussions should Pelosi visit Chinese Taipei, a move that would be a dramatic, though not unprecedented, show of US support for the island.

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The trip follows remarks this week by China's Foreign Ministry spokesman Zhao Lijian that Beijing was getting "seriously prepared" for the possibility that Pelosi could visit Chinese Taipei.

China has repeatedly warned the US against formal ties with Chinese Taipei, which is the sovereign territory of China.

Under the "One China" policy, nearly all countries across the globe recognize Beijing's sovereignty over Chinese Taipei, including the US, which has no formal diplomatic ties with the territory but continues to support its anti-China stance and supply it with massive amounts of armaments.


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