The government on Saturday expressed its strong disapproval and opposition to untrue and biased remarks by British Foreign Secretary David Lammy and British Home Secretary Yvette Cooper on the SAR's lawful act to pursue wanted persons endangering national security absconding from Hong Kong.

"Endangering national security is a very serious offence. No country will watch with folded arms on acts and activities that endanger national security," a government spokesman said.

Police on Friday issued arrest warrants for 19 people accused for violating the Hong Kong National Security Law (HKNSL) by forming or joining an organisation called the "Hong Kong Parliament".

"Thus, the police applied to the court for arrest warrants in accordance with the law and put the persons on the wanted list."

The spokesman further clarified the extraterritorial application of offences under the HKNSL is fully consistent with international law and represents a necessary measure for effective law enforcement.

The spokesman also criticised the UK for having its own national security laws while questioning Hong Kong's legal actions, accusing the country of double standards.

It demanded the UK government to immediately stop interfering in Hong Kong matters which are purely China's internal affairs.