The UK government will suspend its extradition treaty with Hong Kong "immediately and indefinitely".
Announcing the move, Foreign Secretary Dominic Raab said the UK "wants a positive relationship" with China.
But he said the "imposition" of the new national security law in Hong Kong by Bejing was a "serious violation" of the country's international obligations.
Labour said it would support changes to the law, calling it a "step in the right direction".
https://www.bbc.co.uk/news/uk-politics-53476811