China says it will respond resolutely if UK sanctions officials

China will respond resolutely to any attempt by Britain to sanction Chinese officials following the imposition of a security law in Hong Kong, its ambassador in London said on Sunday.

"If UK government goes that far to impose sanctions on any individual in China, China will certainly make a resolute response to it," Liu Xiaoming told the BBC's Andrew Marr Show.

"You've seen what happens in the United States, they sanction Chinese officials, we sanction their senators, their officials - I do not want to see this tit-for-tat happen in... China-UK relations."