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The new cases are across Newcastle and Lake Macquarie.

Hunter New England Health says workers from Sydney worked in the Hunter between August 15 - August 31 and have since tested positive to COVID-19.

Superintendent Chad Gillies says strike force Breve has been established to investigate the incident.

The three new cases are across Lake Macquarie and Cessnock.

Premier Gladys Berejiklian has announced the details of a plan to for school students to return to the class room as well as a new date for the HSC.

The good news for the Hunter comes as the state records another daily record of 1029 cases.

The once dilapidated spot on one of Newcastle's busiest streets has been transformed into an open space with new paving, trees, seating and public art displays.

Police say he picked up a bag of bottles and began swinging it at staff and customers before finally leaving.

It's the first of its kind and will look at how reproductive stem cells can be used as a conservation tool for endangered wildlife species through biobanking.

Broken down by suburb, Wallsend, Windale, North Rothbury and Raymond Terrace each recorded one case.