A group of teachers exchanged WhatsApp messages with "degrading" references to disabled primary school pupils, BBC Scotland can reveal.
The staff at schools in Aberdeenshire faced an internal investigation, but the affected pupils' parents were not informed.
Scotland's children commissioner said the parents should be told.
Aberdeenshire Council has said the messages were "inappropriate and unprofessional".
Scotland's Children and Young People's Commissioner raised concerns about the incident in recent months.
