The incident occurred in the Finnvedens high school in Värnamo, southern Sweden, when the girl struggled to breathe after taking a sip of her drink.
She had earlier put up a note on the notice board to alert students and staff of her nut allergy. However, the note was ripped off shortly afterwards.
“We take this very seriously. If the student who put the nut in her drink knew she had a nut allergy then it’s attempted manslaughter,” said high school manager Bernt Ralfnert.
The attack is now the subject of a police investigation with the school also conducting its own inquiries. Ralfnert told local newspaper Smålänningen that he spoke with teaching staff and it emerged that some students had bought large quantities of nuts.
“The note (she put up) was torn down straight away by somebody. Then somebody put a nut in her drink and when she took a drink she had big problems to breathe. A teacher saw what happened and called an ambulance,” said Ralfnert.
The teenage girl was rushed to the emergency room where she was given assistance to help her begin breathing properly again. She has since made a full recovery.
“She is doing well now and was back at school the next day but this could have gone very badly. She almost suffocated,” said Ralfnert.
“Either the student who did this is completely stupid or it’s attempted manslaughter.”
Police are set to question several students but as yet there is no prime suspect. The incident is currently classified as assault after the girl’s mother reported the matter.
“This is a serious incident, the girl was in a bad way. We’ll see what the classification of the crime will be when we have heard from people. I don’t know of any similar cases to this in the past,” said Tommy Thorngren of the Jönköping police.
According to the school’s website they have 1,300 pupils aged between 16 and 19 years of age.