ACT Chief Minister Andrew Barr says the source of the territoryâ€™s first COVID-19 case in more than a year remains unknown as he confirmed the seven-day lockdown will begin at 5pm.
â€œThis is the most serious public health risk that we are faced in the territory this year,â€ Mr Barr said.
The new case was a man in his 20s residing in Gungahlin. The authorities are contact tracing, but warn the man spent â€œextensive time in the communityâ€ since Sunday morning when he was infectious.
ACT parents are asked to keep their children home from school over the next week, with teachers told to prepare for remote learning to extend in case the lockdown needs to go on for longer. Children of essential workers and those experiencing vulnerability can still go to public school where they will be supervised.
Deputy chief minister Yvette Berry said this meant normal schooling wonâ€™t happen this week but the education directorate had spent the last 12 months developing a home lending library with resources for families.
â€œYou can go to the Education ACT website, search Home Learning, and they will be a range of activities available through that online resource library,â€ she said.
Teachers, school staff and children aged 13 and above must wear masks.
Under stay-at-home orders, ACT residents can only leave for safety, essential work, medical treatment, exercise and essential supplies but have been encouraged not to leave their local area where possible. Masks are required.