Eight cases were linked to existing cases and outbreaks, with the remaining cases under investigation.
Mystery cases are one of the key factors behind the territory's lockdown, which was etended for a further four weeks on Tuesday. There are 53 cases in the outbreak with an unknown source.
A lack of detail about Canberra's eventual exit from lockdown has frustrated community groups, including businesses and parents.
Some detail has been released about a staggered return to school for year 11 and 12 students, but the path forward for younger kids remains unclear.
Meanwhile, some businesses say the lack of certainty is the biggest hurdle.
A programming error on Monday led to chaos at the AIS mass vaccination hub, and resulted in 170 doses going to waste.
I'm Miriam Webber keeping you updated this morning.
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