Health workers are seen inside a locked down portion of the Jordan residential area to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 23, 2021.

Police and health workers stand in protective gear inside a locked down portion of the Jordan residential area to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 23, 2021.

Health workers are seen wear protective gear after the government announced locking down a portion of the Jordan residential area to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 23, 2021.

Residents queue up for mandatory coronavirus disease (COVID-19) testing at a makeshift community testing centre at Jordan residential area, in Hong Kong, China January 22, 2021.

A resident wears a face mask as he walks at Temple Street Night Market, at Jordan residential area, where tens of thousands of its residents will be placed in a lockdown to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 22, 2021.

Residents wear face masks as they walk at a wet market at Jordan residential area, where tens of thousands of its residents will be placed in a lockdown to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 22, 2021.

A health worker wears protective gear inside a locked down portion of the Jordan residential area to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 23, 2021.

A health worker wears protective gear inside a locked down portion of the Jordan residential area to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 23, 2021.

A general view shows the locked down portion of the Jordan residential area to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 23, 2021.

Health workers wearing personal protective equipment (PPE) stand inside a locked down portion of the Jordan residential area to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 23, 2021.

Health workers wear protective gear inside a locked down portion of the Jordan residential area to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 23, 2021.

A resident talks to health workers inside a locked down portion of the Jordan residential area to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 23, 2021. Image used for illustrative purpose.

Police wearing face masks and shields stand guard inside a locked down portion of the Jordan residential area to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 23, 2021.

Medical workers in protective suits help residents to register outside at a residential area at Jordan where tens of thousands of its residents will be placed in a lockdown to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 22, 2021.

A health worker passes a package of gloves to a staff inside a locked down portion of the Jordan residential area to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 23, 2021.

Health workers walk inside a locking down part of the Jordan residential area to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 23, 2021.

Health workers are seen inside a locked down portion of the Jordan residential area to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 23, 2021.

A resident attends mandatory coronavirus disease (COVID-19) testing at a makeshift community testing centre at Jordan, in Hong Kong, China January 22, 2021.

A medical worker in a protective suit helps a resident to register outside at a residential area at Jordan where tens of thousands of its residents will be placed in a lockdown to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 22, 2021.

A woman brush her teeth by a window near a locked down portion of the Jordan residential area to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 23, 2021.

A resident jumps onto another building from a rooftop inside a locked down portion of the Jordan residential area to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 23, 2021.

Health workers wear protective gear inside a locked down portion of the Jordan residential area to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 23, 2021.

Health workers are seen in protective gear inside a locked down portion of the Jordan residential area to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 23, 2021.

Residents queue up for the mandatory coronavirus disease (COVID-19) testing inside the locked down part of the Jordan residential area to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 23, 2021.

A woman holds her bags as she stands outside a locked down portion of the Jordan residential area to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 23, 2021.

A medical worker in a protective suit helps residents to register outside at a residential area at Jordan where tens of thousands of its residents will be placed in a lockdown to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 22, 2021.

Residents carry bags of grocery inside a locked down portion of the Jordan residential area to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 23, 2021.

A general view shows a locked down portion of the Jordan residential area to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 23, 2021.

Police officers wear protective gear inside a locked down portion of the Jordan residential area to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 23, 2021.

A resident wears a face mask and a shield as she walks at a wet market at Jordan residential area, in Hong Kong, China January 22, 2021.

A resident argues with health workers inside a locked down portion of the Jordan residential area to contain a new outbreak of the coronavirus disease (COVID-19), in Hong Kong, China January 23, 2021.