China said on Thursday it would revoke visa exemption treatment for U.S. diplomatic passport holders visiting Hong Kong and Macau after the United States imposed financial sanctions and a travel ban on more than a dozen Chinese officials.

Beijing will also implement reciprocal sanctions against some U.S. officials, members of Congress, personnel at non-governmental organisations, and their family members, over their "vile" behaviour on Hong Kong, foreign ministry spokeswoman Hua Chunying told a news conference.