The government says the lockdown of a block of flats in Sham Shui Po will be extended for another day after 22 people tested preliminary positive for Covid during an overnight operation there.
The lockdown was imposed on Monday evening after the virus was found in sewage samples from Fu Yuet House in Fu Cheong Estate.
The testing operation there was originally expected to be completed by 10am on Tuesday, but is now scheduled to end at 10am on Wednesday.
Residents will be made to undergo a second Covid test.