The director of the Hong Kong and Macau Affairs Office Xia Baolong, on Saturday gave a keynote speech at a forum marking the fifth anniversary of the National Security Law's enactment in the SAR and visited the national security exhibition gallery.

On the fourth day of his inspection tour in the city, Xia warned against complacency on safeguarding national security at the forum held at the Convention and Exhibition Centre in Wan Chai.

The event aimed to boost the understanding and awareness of various sectors regarding the protection of national security.

Xia then visited the national security exhibition gallery at the Museum of History.

Chief Executive John Lee accompanied him during the museum tour.

Xia is expected to wrap up his visit on Sunday.