South Australia will impose a hard border closure with NSW in response to the spread of COVID-19 cases in Sydney, with officials also keeping their "fingers and toes crossed" in relation to Victoria as cases emerge in Melbourne.
Britain has become the first country to approve a coronavirus vaccine developed by Oxford University and AstraZeneca, hoping rapid action will help it stem a surge of infections driven by a highly contagious variant of the virus.
New Year's Eve restrictions across greater Sydney have been tightened after NSW reported 18 cases of community transmission of coronavirus and a second cluster in the city's inner west.
NSW is not out of the woods in its suppression of a COVID-19 outbreak, Premier Gladys Berejiklian warns, with three new cases diagnosed without immediate links to the northern beaches cluster.
A US judge has denied bail to Ghislaine Maxwell, citing the risk the British socialite could try to flee from charges she assisted in the late financier Jeffrey Epstein's sex trafficking of girls.