Gwent Police has confirmed that a girl has been taken to hospital.
A spokeswoman said the force received a report of a medical emergency at St Julian’s High School, Newport at around 10.40am on Wednesday, June 5.
She added: “Officers attended, along with personnel from the Welsh Ambulance Service and Welsh Air Ambulance.
“A 14-year-old girl was taken to hospital for treatment.”
The spokeswoman did not provide details of the youngster’s condition.