WHERE?

* The cluster is centred in the City of Casey, in Melbourne's outer south-east.

WHAT HAS HAPPENED?

* 90 active cases across Dandenong and Casey.

* The cluster is five households with family connections across Hallam and 34 positive cases, first seen on September 4. Thirty of these cases are active.

WHAT ACTION IS BEING TAKEN?

* Incident management team set up.

* Several community forums, with testing encouraged.

* Working with community leaders, including youth support networks.

* Nine pop-up sites operating in Dandenong and Casey, and another four set up.

* Authorities also contacting businesses in Dandenong, Noble Park, Clude, Narre Warren and Fountain Gate.

* Testing also offered to rideshare drivers who live or work in Casey/Dandenong.

Source: Department of Health and Human Services

Australian Associated Press