A head teacher has apologised after hundreds of pupils' private data was shared with two parents.
Wellsway School in Keynsham, near Bristol, has been reported to the Information Commissioner's Office after 86,000 lines of sensitive information was emailed to a couple.
They were sent the data after they submitted a Freedom of Information request because they felt the secondary school's withdrawal room was being used excessively.
The school said it had "immediately followed through with all procedures and informed parents" when it became aware of the date breach.