In a press conference today acting Victorian Premier Jacinta Allan announced the state will tighten restrictions in the lead-up to New Year’s Eve celebrations following the recording of three more coronavirus cases. This comes on the back of three cases recorded yesterday.

Allan said from 5pm today, Thursday December 31, the number of people allowed to gather in private homes will be reduced from 30 to 15 and masks will also be made mandatory indoors.

"If you are planning to leave your home at the moment, we ask people to carry their masks with them, we are now asking them to wear a mask if they are indoors in any location which is not their private home," she says, adding that if you were planning a New Year's Eve party, "you will need to reduce your numbers".

"We do apologise to people who have put plans in place, who was looking forward to having events in their home, or in other people's homes, but this is a necessary step," she said.

The three cases yesterday were all linked to the Smile Buffalo Thai restaurant in Black Rock on December 21. A returned traveller from NSW also attended the restaurant that day.