Gladys Berejiklian urges more use of face masks as NSW faces 'high-alert state' of Covid-19 pandemic

NSW premier says masks strongly recommended' in certain circumstances as state announces 12 new cases

New South Wales authorities have urged people in the state to wear face masks in certain circumstances after two workers at a western Sydney childcare centre contracted coronavirus from an unknown source.

Twelve new cases were reported in NSW in the 24 hours to Saturday night with only one case having no known source of infection.