Millions more Australians are now in lockdown as the highly contagious Delta variant continues to spread.
It is the latest part of the country to reimpose restrictions in a bid to cut Covid infections, BBC reported.
Fewer than 15% of Australians are fully vaccinated against the virus.
Queensland officials reported six new Covid cases there, all linked to a high school student who tested positive on Thursday.
The restrictions imposed are the strictest yet in Queensland. People are only allowed to leave home to buy essential goods or carry out essential work, to exercise or to go for medical treatment.
It comes a day after authorities deployed hundreds of soldiers in Australia's largest city Sydney to enforce its Covid lockdown.