Iranian asylum seekers on Manus Island are refusing to send their children to school because classrooms are not air-conditioned.
In the latest wave of protest inside detention centres, _The West Australian _understands about a dozen children are boycotting lessons provided by two Australian-trained teachers.
Tamil detainees are allowing their children to attend the school.
Of the 181 detainees moved to Manus Island since November, 34 are children.
Save the Children has been contracted to provide children's services in the camp, including responsibility for running lessons in two classrooms.
Programs director Scott Gilbert confirmed children had not been going to school because of a lack of air-conditioning.
"The Iranian parents see this as the best way probably to press the case for air-conditioning and better conditions," he said.