Covid-19 cases spike overnight

Covid-19 Sydney cluster: 30 new cases reported overnight

The New South Wales Premier, Gladys Berejiklian, says while the number are higher than yesterday, a positive is that officials haven't seen evidence of the virus spreading significantly outside the Northern Beaches.

Everyone in the Greater Sydney area, including the Blue Mountains and Central Coast, is now asked to have no more than 10 people in their homes until Wednesday.

The Northern Beaches region remains in lockdown.