US Calls For Release Of HK Democracy Campaigners

US Secretary of State Antony Blinken has called for the immediate release of Hong Kong dissidents charged and detained under Beijing's sweeping new national security law.

"We condemn the detention of and charges filed against pan-democratic candidates in Hong Kong's elections and call for their immediate release," Blinken said on Twitter.

"Political participation and freedom of expression should not be crimes. The US stands with the people of Hong Kong."

Dozens of Hong Kong dissidents were charged with subversion on Sunday in the largest use yet of the national security law, as authorities seek to cripple the financial hub's democracy movement.

Police arrested 55 of the city's best-known pro-democracy campaigners in a series of dawn raids last month.

On Sunday, 47 were charged with one count each of "conspiracy to commit subversion" – one of the new national security crimes – and the group were appearing in court on Monday morning. (AFP)