THREE of Victoria's four new COVID-19 cases were close contacts of diners at the Black Rock Restaurant and already in isolation, health authorities have announced.

A returned international airline crew member in hotel quarantine accounted for the other new positive case on Tuesday.

This case makes a total of eight international airline crew members who have tested positive in Victoria since a testing program for that industry began.

Other news:

The number of active cases in Victoria now stands at 38, including 27 locally acquired cases and 11 in hotel quarantine.

All of Victoria's locally acquired COVID-19 case are linked to the Black Rock restaurant outbreak.

More than 1300 people have been identified as close contacts in Victoria linked to the Black Rock cluster, including 900 primary close contacts and about 400 secondary close contacts.

Find testing information on the Department of Health and Human Services website.

Earlier

VICTORIA has recorded a further four new cases of COVID-19 since Monday.

The Department of Health and Human Services reported that in the 24 hours to midnight, the state's locally acquired cases rose by three.

The fourth case was acquired overseas.

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There are now 38 known active cases overall in Victoria. On Monday there were 36 active cases in the state.

More than 32,540 results were received on Monday, following a few big testing days.

In Bendigo more than 1300 people were tested during the long weekend.

Pathology sites processed more than three times the normal volume of COVID-19 tests as the state cracked down on the latest outbreak.

On Monday, chief health officer Brett Sutton said the state's testing capacity had more than doubled in the past few days.

He expected sites to meet increased demand.

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