Canberra's lockdown will be extended until midnight on September 17 to deal with a COVID-19 outbreak.
ACT Chief Minister Andrew Barr said the lockdown had proven to be effective but it was essential to keep it going to reduce the outbreak.
"It is a slow process and it will take more time," Mr Barr told reporters in Canberra on Tuesday.
"We still have unlinked cases in the community."
A number of changes will be made to lockdown settings from this Thursday.
Another 13 cases were reported on Tuesday, with seven linked to current exposure sites and six are under investigation.
It takes the total number of active cases in the ACT to 242.
Four of the cases were in quarantine for their entire infectious period.
At least eight people were infectious in the community, with the remaining case still under investigation.
Thirteen people are in hospital with three in intensive care.
Australian Associated Press
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