Victoria has recorded six new COVID-19 cases as the Chadstone shopping centre outbreak grows leading to more than 170 people being forced into self-isolation.

Victoria's COVID testing program commander Jeroen Weimar yesterday confirmed 31 cases are now linked to the Butcher Club at Chadstone Shopping Centre, an increase from the 28 reported on Tuesday.

The outbreak has made its way into regional Victoria, with two Kilmore residents - 60km north of the city - testing positive to Covid-19 after an infected Melbourne person broke restrictions to dine at a local cafe.