Russian Foreign Ministry spokeswoman Maria Zakharova said on Tuesday that Russia views US House of Representatives Speaker Nancy Pelosi's expected visit to Taiwan as a "provocation" aimed at pressuring Beijing.
In a press briefing, Zakharova said that Russia supporters Beijing's One-China principle, and opposes Taiwanese independence "in any form", reports Reuters.
Chinese leader Xi Jinping warned US President Joe Biden against playing with fire over Taiwan in a call last week but three sources told Reuters on Tuesday that Pelosi was still set to visit the island.
"We cannot say for sure right now whether she will or will not get there, but everything about this tour and the possible visit to Taiwan is purely provocative," Kremlin spokesman Dmitry Peskov told reporters.
Maria Zakharova, Russia's foreign ministry spokeswoman, said the expected visit was a provocative attempt by Washington to pile pressure on China - with whom Russia has forged a strong partnership in recent years.
"We consider a possible visit by Pelosi to Taiwan... as another provocative action by the United States aimed at exerting additional pressure on Beijing," she said.
"Russia confirms the principle of "one China" and opposes the independence of the island in any form," Zakharova said.
China views visits by US officials to Taiwan as sending an encouraging signal to the pro-independence camp in the island. Washington does not have official diplomatic ties with Taiwan but is bound by US law to provide the island with the means to defend itself.
In the Chinese civil war, Mao Zedong's Communists defeated the forces of the Kuomintang (KMT), or nationalist party, under Chiang Kai-shek, forcing him to flee to Taiwan in 1949.