A woman dons face masks to guard against the coronavirus in a shopping mall in Hong Kong, July 22, 2020. (CALVIN NG/CHINA DAILY)

HONG KONG - Hong Kong reported 62 new coronavirus cases on Wednesday, as authorities cautioned that the global financial hub still faced a critical period to contain further transmissions of the virus and warned residents to stay vigilant at social distancing.

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Authorities said 61 of the 62 cases were locally transmitted, and 28 had no known origins.

Since late January, around 4,200 people have been infected in Hong Kong, 63 of whom have died. Wednesday’s figure was up from Tuesday’s 33 cases.

The new cases brought the city's infection tally to 4,243.

The disease claimed four more patients aged between 78 and 93, said the Hospital Authority. All of them had chronic diseases. The new additions brought the city's toll to 63.

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With Reuters inputs