Chief Secretary Eric Chan has warned against western efforts to damage peace and order in Hong Kong in the hope of undermining China's development.

Speaking on RTHK's NSL Chronicles III programme, Chan said the SAR's two pieces of security legislation had prevented foreign politicians from stirring up trouble here.

"There are still countries in the West, especially the United States, that are watching Hong Kong with a covetous eye. They hope to use different ways to destroy Hong Kong's peace and order, to ultimately undermine the nation's development," Chan said.

He described the Hong Kong National Security Law and the Safeguarding National Security Ordinance as "medicine" to treat "illnesses", while underscoring the importance of "boosting Hong Kong's immunity" through patriotic education when it comes to national security.