Health officials on Saturday said they had found no new Covid-19 cases following an overnight lockdown at a residential building in Tin Shui Wai.
Authorities sealed off Block 2 of Grandeur Terrace, 88 Tin Shui Wai Road, on Friday evening as a preliminary positive case lives in the block.
The government said, as of 1 am, 1,122 people had been tested.
It said of the 370 households visited, 32 did not answer the door and that follow-up action would be taken.