In this picture taken on Oct 30, 2021, a woman scans a QR code for the government's "Leave Home Safe" mobile application to trace people in the event of any COVID-19 outbreaks in Hong Kong. (BERTHA WANG / AFP)

Hong Kong's health authorities on Tuesday reported two new imported cases of COVID-19, both involving mutant strains, taking the city’s tally of coronavirus infection to 12,349.

Both the new patients – a male, 29, and a female, 37 – had received two doses of COVID-19 vaccines, according to the Centre for Health Protection of the Department of Health.

The man, who flew in from the Philippines on Oct 29, tested positive during quarantine at Best Western Plus Hotel in Sai Ying Pun. He was asymptomatic.

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The other patient tested positive under the "test-and-hold" arrangement upon arrival at the Hong Kong International Airport from Spain, Greece, Portugal and Turkey on Oct 31. Her infection onset is Oct 24, the CHP said in a press release.

All the 48 COVID-19 cases that Hong Kong recorded since Oct 19 are imported cases, the CHP said.

READ MORE: HK logs 3 new COVID-19 cases, including 2 with mutant strains

Meanwhile, residents at Tower 1, Grand Promenade, 38 Tai Hong Street in Sai Wan Ho have been ordered to get tested by Wednesday due to an earlier infection.