Police in Melbourne have arrested 10 people at a protest against the coronavirus restrictions in Victoria after another 10 cases were recorded overnight.

More than 150,000 Victorians have been tested for COVID-19 as part of a two-week testing blitz, which authorities will use to inform how restrictions will be lifted in the state.

Health Minister Jenny Mikakos said 20 cases were detected as part of the testing drive who were not linked to other known cases, many of whom were asymptomatic.

“These are 20 cases that otherwise potentially would not have been identified in the community through regular screening,” she said.

“So I think that’s a positive result, that of the very significant number of swabs that have been collected … that to date we’ve only had about 20 cases that tested positive.

“We know how contagious this virus is and how easily it spreads.”