The police are questioning a male teacher, 38, who allegedly installed a video camera to film one or more female colleagues using the toilet.
The case was reported last week in a government primary school. The police confirmed that the case is under investigation. The teacher has since not reported to school.
l-orizzont reported that a teacher noticed the camera in the toilet cubicle and informed the school authorities, who then called in the police.
A search in all toilet cubicles was made.
Schoolchildren are not thought to be involved in the case.