"The Hong Kong Police Force's issuing of further arrest warrants and bounties on individuals living in the UK is another example of transnational repression," Foreign Secretary David Lammy and Home Secretary Yvette Cooper said in a joint statement.

Hong Kong authorities announced Friday that they are offering cash rewards for information leading to the arrest of 19 pro-democracy activists based abroad, accused of violating the national security law imposed by Beijing in 2020.

The bounties range from about $25,000 (HK$200,000) to $125,000, depending on the individual Hong Kong seeks.

This is the fourth time Hong Kong authorities have made this type of appeal, which has already drawn strong criticism from Western countries, which China in turn has denounced as "interference."

In their statement, Lammy and Cooper called on China to stop targeting opposition voices in Britain.

Around 150,000 Hong Kong nationals migrated to the UK under a special visa scheme introduced in 2021.

But a recent proposal by the British government to reform extradition rules has sparked serious concerns, with some fearing it could pave the way for a resumption of extraditions to Hong Kong, which have been suspended since the 2020 national security law was enacted.

In their statement, the two British ministers said "this Government will continue to stand with the people of Hong Kong, including those who have made the UK their home. We take the protection of their rights, freedoms, and safety very seriously."