There are fears the NSW coronavirus outbreak will continue to cross borders, as Canberra and Melbourne record more local cases.
And with current COVID-19 outbreaks now in three states, it's put the nation on edge.
"This is the worst situation NSW has been in since day one and it's also, regrettably because of that, the worst situation Australia's been in," NSW Premier Gladys Berejiklian said.
READ MORE: All of NSW now in lockdown
There are warnings it will hit the nation's economy and fears the virus will spread even further.
Today, the Prime Minster issued a desperate message on radio.
"We've just got to get this lockdown right, Sydney, we've gotta get it right," Scott Morrison said on Nova FM.
But Labor says the Prime Minister is the one who got it wrong – criticising Mr Morrison for praising the NSW Premier for not rushing to lock down as well as for the delays to the vaccine rollout.
"Scott Morrison bears significant responsibility for this third wave," Shadow Health Minister Mark Butler said.
However, Mr Morrison insists the vaccine rollout is back on track.
"We'll have another record day today," he said on Nova, claiming "over 15 million doses would've been delivered."
"One in four Australians are now fully vaccinated," Mr Morrison added.
The Government expects every Australian who wants a jab will have one by October.