Health authorities have identified three cases possibly linked to an outbreak involving a more transmissive strain of the Omicron variant at a quarantine hotel in the heart of Hong Kong’s nightlife district.

The infections were among 237 new coronavirus cases confirmed by officials on Sunday, 25 of which were imported, while no new deaths linked to the virus were logged.

Health authorities revealed the cluster at the Lan Kwai Fong Hotel on Friday, after a 65-year-old man and his 64-year-old female partner were found to be infected with the BA. 2.12.1 subvariant at a community testing centre on May 14, the 12th day after they arrived from San Francisco.