A UK mother has slammed her son's school for a 'sick' and 'insensitive' creative writing assignment that left her fearing for his life.

According to The Daily Mail Vicki Walker's son Wesley gave his mother a letter telling her he loved her, asking for bright colours at his funeral and asking her not to be sad and went up to his bedroom.

"I don't want you to be sad I want you to remember the fun times and the happy times. At my funeral make everyone wear bright colours to remember my personality,"it said.

He goes on to leave his prized possessions to family members and asks his mother to be strong.

After reading the note a distraught Ms Walker ran to his room, terrified Wesley, 14, had taken his own life.

Wesley was in fact asleep and the letter was a creative writing assignment set by a teacher in which students had to imagine they had only a few days to live.

Children were asked to imagine they had a terminal illness and express thanks to loved ones. Wesley said: 'I just thought it was like any other piece of work. I just got on with it.'

Mr and Mrs Walker said they deeply shaken by the experience and had complained to the school for not warning the parents about the reason for the letter.

Mr Walker also said the assignment could have been harmful to vulnerable teens.

Wesley's school, the Discovery Academy in Stoke-on-Trent apologised for any distress caused by the exercise but maintained many parents had seen it as 'valuable', it allowed young people to express their feelings and it was in line with the curriculum.