A school that asked pupils to pen a mock suicide note has apologised after a parent complained.
GCSE English students at Cheney School in Headington, Oxford, were set the task as part of studying J.B. Priestley's An Inspector Calls.
One mother branded the exercise - which invited teenagers to adopt the persona of a young woman in 1912 - a "massive fail".
In a statement, the school said it was "very sorry for any distress caused".
The mum, who asked not to be named, said she felt "uncomfortable and uneasy" and "genuinely shocked" when her child told her about the writing task.
"The actual assignment was 'imagine you are a young woman in 1912 writing a suicide letter to those who care about you'", she said.
"[There was] no warning, no support, no encouragement."
The woman, who has a relative who attempted suicide, wrote a concerned letter to the school's Head of English.
Speaking to the BBC, she added: "I genuinely feel it could be done well to raise awareness of teen mental health and suicide, but this was a massive fail.
"It is a tumultuous time for them as teenagers."
The events of the 1945 play, which is a GCSE set text, are set in motion after the character of Eva Smith dies.
She leaves behind a letter and a diary, but is never seen in the play.
In a statement, the school said the suicide note exercise was part of a "wider topic on social responsibility".
It said it was "delivered sensitively" and students who found it distressing "could excuse themselves from the lesson".
The writing task has since been reviewed and "adjusted accordingly", it said, but stated that the curriculum had to address "many difficult issues".
"We will always look to reflect on our teaching and learning practice to make improvements," it added.