Pupils at a residential school for the deaf were put at risk of child sexual exploitation and grooming, according to inspectors.
The principal at the Royal School for the Deaf Derby has been suspended for “failing to promote the safeguarding needs of the pupils”, Ofsted said.
It was rated “inadequate” in all categories following a two-day inspection in December.
The 131-pupil school includes some children with “complex special needs”.
The report said the principal’s failure to share child protection concerns “directly impacted upon pupils as they were placed at risk of potential grooming and child sexual exploitation”.
The problems at the school resulted in “social workers and independent reviewing officers attempting to make crucial decisions about the welfare of children looked after without full information before them”.
Ofsted said it has made the Department for Education aware of the issues at the school, where alternative safeguarding arrangements have since been put in place.