Rooftop fire at Hong Kong Mong Kok residential tower; no casualties reported

A fire broke out on the rooftop of a 26-storey residential building in Mong Kok, Hong Kong, with thick smoke visible; firefighters are responding with one water jet. No casualties have been reported as of 7pm, and some residents self-evacuated. The incident is contained to a single building and does not indicate broader systemic failure.