Hong Kong authorities have told a pro-independence party that the group might be banned on national security grounds.
The decision was made under the authority of a national security law, and is benig described as one of the most severe steps against separatist voices since the territory returned to Chinese rule in 1997.
Andy Chan, co-founder and convenor of Hong Kong National Party, has criticised the move.
He said, "Hong Kong National Party has always been an enemy of China and they always want to deal with Hong Kong National Party. And recently I went to Taiwan on the first of July to hold a press conference with some Taiwanese political party, Taiwanese politicians, talk about the human rights of Hong Kong. I think that could be one of the reasons."