Hong Kong's leader has pledged systemic governance reforms in public safety and security. These vows were made following a deadly fire in Tai Po, which authorities linked to efforts to stir social unrest.

Hong Kong’s leader has pledged to enhance the city’s governance in public security and safety, and carry out systemic reform following the deadly Tai Po fire, describing it as a key task in safeguarding national security. Chief Executive John Lee Ka-chiu’s remarks came after Xia Baolong, Beijing’s top official overseeing Hong Kong affairs, said people with “ulterior motives” had exploited the city’s deadliest blaze in decades to stir up social unrest and called for vigilance against national...