Vladimir Putin presented China with a diplomatic gift on the occasion of the 75th anniversary of friendship between Moscow and Beijing.
Putin conveyed words of support for China's territorial integrity through Russian Foreign Minister Sergei Lavrov.
The Russian president's gesture has caused concern among US authorities, reports the NetEase agency.
Lavrov stressed that the Russian Federation fully supports China’s efforts to preserve the unity of the country.
The Russian diplomat's statement, as emphasized, caused a reaction in Washington.
The White House believes that such statements strengthen China's desire to increase its influence in the region.
The United States supports Taiwan's independence and therefore views such statements as a threat to stability.