Two South Australian schools have been closed after a person who attended them tested positive for COVID-19.

The person was one of two people confirmed as the states new cases yesterday.

The woman, aged in her 20s, was at Thebarton College in Adelaide during a period of time she was infectious and was tested for coronavirus on Friday.

She is a close contact of another known case.

It has also been revealed that the woman went to Roma Mitchell Secondary College for an out-of-hours program.

Both schools are now closed for a deep clean and will reopen once an all-clear is given.

The other newly-identified case today was a teenage girl who arrived in South Australia from Victoria last Sunday on Jetstar flight JQ774.

Want more? Listen to one of our favourite moments from Erin Phillips & Soda – Tune in weekdays from 6AM on Mix102.3!