Health officials said on Monday that no new coronavirus cases were found after 570 residents in a Tsuen Wan building were tested overnight.
The building was locked down for the testing, which finished at 6:45am on Monday.
A 56-year-old man, who’s being treated as an imported case, had been staying at Block One of Bo Shek Mansion during the 21-day incubation period of the virus.
The man flew to Dubai last Sunday and tested positive on his return on Friday.