Queensland is on alert after a 44-year-old woman from Melbourne escaped lockdown with her husband last week, travelled through country NSW and over the Queensland border to the Sunshine Coast, before testing positive for COVID.

The PM will push to strengthen international trade bodies when he heads to the G-7 summit.

Adelaide is now the most liveable city in Australia according to the Economist's 2021 survey.

In sport, Nathan Buckley will coach Collingwood for the last time in Monday's clash against Melbourne at the SCG, after announcing he will stand down from his role.

And in entertainment news, actor Armie Hammer has checked himself into rehab to get treatment for several addiction issues.