Victorian COVID Commander Jeroen Weimar is in Ballarat to coordinate plans to tackle the outbreak.
It follows the deployment of government's Regional Response Unit.
He says the Unit will support a major testing drive.
"We are working through setting additional testing capacity across the city of Ballarat and we will be running extended hours for some of our testing sites," he said.
Image: Jeroen Weimar with council CEO Evan King. Photo: Evan King