Several government disciplinary forces held public engagement activities in the run-up to the National Security Education Day, which will take place on Monday.

The Civil Aid Service (CAS), for example, said more than a thousand people attended its open day at its Yau Ma Tei headquarters on Sunday morning.

Visitors were able to see exhibitions and lectures on national security, as well as activities such as a foot-drill performance, mountain search and rescue demonstration, and drone shows.

Deputy Financial Secretary Michael Wong, who gave an opening address, thanked the CAS for their role in promoting national security education amongst the younger generation.

"It is crucial to instil a sense of national security awareness from an early age. Through active participation in community service, civic education, and discipline training, they [CAS members] are nurturing these young individuals to become future leaders who love their country and Hong Kong and also responsible citizens," he said.

Wong also praised an off-duty CAS member for offering assistance during the New Lucky House fire, which took five lives and critically injured several others on Wednesday.

“Under a safe condition, he started spraying water and calmed the residents, assuring them that help was on its way,” the deputy finance chief said.

“He also directed seven construction workers to use their welding torches to cut through the iron mesh that was blocking residents' escape routes. Their combined efforts led to the successful rescue of over ten people.”

The Fire Services Department and Customs and Excise Department also held their own open days to mark the upcoming National Security Education Day.