(UPI) China retaliated against the United States on Monday for signing legislation in support of pro-democracy protesters in Hong Kong by suspending port calls by U.S. military ships to the embattled region and imposing sanctions against non-governmental organizations.

Foreign Ministry spokeswoman Hua Chunying said during a regular press conference that China is suspending reviews of requests from U.S. military vessels to visit Hong Kong in response to President Donald Trump on Thursday signing the Hong Kong Human Rights and Democracy Act into law that allows the United States to punish the Asian nation for infringing upon Hong Kong’s autonomy.

China also sanctioned several NGOs, including Human Rights Watch, the National Endowment for Democracy, the National Democratic Institute for International Affairs, the International Republican Institute and Freedom House, Hua said, blaming them for fueling the months of instability that have rocked Hong Kong.

“There is a lot of evidence proving that these NGOs have supported anti-China forces to create chaos in Hong Kong, and encouraged them to engage in extreme violent criminal acts and ‘Hong Kong independence’ separatist activities,” she said. “They have a large responsibility for the chaos in Hong Kong and deserve to be sanctioned and pay the price.”

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Following Trump signing the law last week, China’s Ministry of Foreign Affairs promised countermeasures against the United States who it has repeatedly warned against implementing the act in support of the Hong Kong protesters, describing it as an attempt to interfere in its internal business.

“The United States must bear all consequences,” it said in a statement.

Trump also signed the Protect Hong Kong Act that prohibits U.S. exports of tear gas, pepper spray, grenades, guns and other crowd-control equipment to the Hong Kong police.

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“I signed these bills out of respect for President Xi [Jinping], China and the people of Hong Kong,” Trump said in a statement. “They are being enacted in the hope that leaders and representatives of China and Hong Kong will be able to amicably settle their differences leading to long-term peace and prosperity for all.”

Under the Hong Kong Human Rights and Democracy Act, the U.S. State Department is mandated to conduct a yearly review to see if Hong Kong’s level of autonomy from mainland China warrants its special status under U.S. trade law and permits for sanctions to be imposed against Chinese officials for committing human rights abuses against protesters, among other provisions.

Hong Kong has been submerged in six months of mass protests that started out against a now-shelved extradition bill that has since evolved into a wider pro-democracy movement.