More than 100 residents left Mei Tai House and gathered on the street after a fire broke out in a high-floor flat at Fu Tai Estate in Tuen Mun on 16 October.
The fire was reported at about 7.44pm in a bedroom. Heavy smoke rose above the block, leading some nearby residents initially to think the roof was on fire.
Firefighters deployed a hose and a breathing apparatus team, extinguishing the blaze at about 8.06pm. No injuries were reported.