Students and staff from two classes at Halls Head Primary School have been sent into isolation following a confirmed COVID case.
In an email to parents and families, Principal Peter Beckingham said the positive case was in a Year 6 class and a Pre-Primary class on Tuesday.
It is unclear whether the infected person was a staff member or a student.
"Our school will continue to operate as per normal, with some alterations to play areas and lunch areas," Mr Beckingham said.
Halls Head Primary is one of 30 schools across WA that have been impacted by COVID.
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