Firefighters put out a blaze on Friday morning in a village in Tsuen Wan.
The fire broke out in Wang Lung Tsuen just after 4 am. It was upgraded to a third alarm half an hour later.
Around 100 people were evacuated from their homes as firefighters fought the blaze using six jets and six breathing apparatus teams.
Two people were sent to Yan Chai Hospital for treatment.
The fire was extinguished around 7 am.