Beijing has made strong protests against Washington after United States President Joe Biden signed into law on Friday the "Promoting a Resolution to the Tibet-China Dispute Act," urging the US to refrain from implementing the Act, which undermines China's interests.

The Act gives recognition to the notion of "Greater Tibet," made up by the Dalai group, and asks the US government and the United States Special Coordinator for Tibetan Issues to counter "disinformation about Tibet" from the Chinese government.

The Act violated the US government's long-held position and commitments and the basic norms governing international relations, a spokesperson said in a statement issued by the Foreign Ministry on Saturday.

It also grossly interfered in China's internal affairs, and sent a severely wrong signal to the "Tibet independence" forces, the spokesperson added.

Noting that Xizang has been part of China since ancient times, the spokesperson said Xizang affairs are China's internal affairs, which brook no interference by any external forces.

As Xizang today enjoys social stability and harmony, with sound economic performance and people's well-being fully protected, the spokesperson said no one and no force should ever attempt to destabilize Xizang in order to contain and suppress China.

"Such attempts will never succeed," the spokesperson said, while urging the US to take concrete actions to honor its commitments of recognizing Xizang as part of China and not supporting "Tibet independence."

"If the US continues down the wrong path, China will take resolute measures to firmly defend its sovereignty, security and development interests," the spokesperson said.