Sixteen new COVID-19 cases have been detected in New South Wales overnight as health authorities announced a slew of restrictions aimed at slowing the spread of a "very serious outbreak" of the highly contagious Delta variant.
The official case tally for Wednesday was 10 infections and included seven previously announced cases. A further 13 cases were recorded after the 8pm cut off and will be included in Thursday's numbers.
A total of 31 cases have now been linked to the Bondi cluster.
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