In response to and in support of the 10th National Security Education Day, the Fire Services Department held an open day on April 13 at the Fire and Ambulance Services Academy in Tseung Kwan O to deepen the public's understanding of the department's work in safeguarding national security, public safety and public order, as well as enhancing their awareness of the responsibility in safeguarding national security. The event attracted more than 9 000 visitors.