China has imposed sanctions on nine UK citizens - including five MPs - for spreading what it called "lies and disinformation" about the country.
It comes in retaliation for measures taken by the UK government on Monday over human rights abuses against the Uighur Muslim minority group.Sir Iain Duncan Smith is among the MPs targeted by China, along with two peers, a lawyer and an academic.
He said he would wear the sanctions "as a badge of honour".
The response by China follows similar sanctions imposed on the European Union, which was part of the co-ordinated action along with the UK, the US and Canada on Monday.
China has detained Uighurs at camps in the north-west region of Xinjiang, where allegations of torture, forced labour and sexual abuse have emerged.
It has denied the allegations of abuse, claiming the camps are "re-education" facilities used to combat terrorism.
The nine people facing sanctions are Tory MPs Sir Iain, Tom Tugendhat, Neil O'Brien, Tim Loughton, and Nusrat Ghani; the peers Lord Alton and Baroness Kennedy; a lawyer, Sir Geoffrey Nice QC, and an academic, Jo Smith Finley.They will all be banned from entering China, Hong Kong and Macao, their property in China will be frozen and Chinese citizens and institutions will be prohibited from doing business with them.