Secretary of State Mike Pompeo reported to Congress on Wednesday that Hong Kong was no longer autonomous from China, a move that could jeopardize the special administrative region's favorable trade relationship with the U.S.

The State Department was required to issue a determination on Hong Kong's autonomy under pro-democracy legislation passed late last year.

"No reasonable person can assert today that Hong Kong maintains a high degree of autonomy from China, given facts on the ground," Pompeo said in a statement. .

"While the United States once hoped that free and prosperous Hong Kong would provide a model for authoritarian China, it is now clear that China is modeling Hong Kong after itself.".

will impose substantial costs on China over Hong Kong. .

has a significant financial relationship with Hong Kong.

could revoke some of Hong Kong's privileges, but said such an action was the "nuclear option."?

Marco Rubio, R-Fla., has said that if China moves forward with its national security legislation, the State Department would have no choice but to certify that Hong Kong was no longer autonomous and "sanctions should follow.".

"I applaud the Trump Administration for taking the necessary step, as required under my Hong Kong Human Rights and Democracy Act, to protect American interests and safeguard the rights and freedoms of the people of Hong Kong," Rubio said in a statement Wednesday