All of Sydney urged to be on 'high alert' as Northern Beaches coronavirus cluster swells to 28

Residents of the Northern Beaches have been told to stay home for at least three days unless it is absolutely essential to leave the house.

People queue up in their cars to be tested at a drive-thru COVID-19 testing facility next to the Avalon RSL at Avalon, on Sydneys northern beaches, Dec 18, 2020 Source: AAP

Premier Gladys Berejiklian has urged all Sydneysiders to be on high alert and use masks in crowded spaces, as the Northern Beaches COVID-19 outbreak expands to 28 people.

Approximately 250,000 people living in the Northern Beaches area have been told to stay at home for three days as testing is done.

Ms Berejiklian says the next few days will be critical in determining whether restrictions need to be re-introduced.

Read the full story in Eglish here.