Australia reported 58 deaths from COVID-19 on Sunday, as the two most populous states, New South Wales (NSW) and Victoria, said students would be tested twice weekly for the Omicron variant when classes resume next week following the summer break.

NSW reported 34 COVID-19 deaths, while Victoria state saw 14, and Queensland reported 10.

Health officials said they believe the Omicron outbreak has peaked in NSW and Victoria, which reported 20,324 and 13,091 new cases respectively on Sunday.

NSW Premier Dominic Perrottet said parents will be asked to use rapid antigen tests twice a week to check their children for COVID-19, and report any positive result to the school and government.

Millions of the test kits are being distributed to 3,000 schools this week, and students need to be tested before attending the first day of classes, he told reporters in Sydney.

Teachers and high school students will be required to wear masks.

Victoria state has also recommended twice weekly testing of students under its return to school plan.

School staff in NSW and Victoria must be vaccinated for COVID-19, and teachers in Victoria have a deadline of the end of February to receive a booster shot, Victorian health officials said.