A 13-year-old female pupil at Eastwood’s top-performing Williamwood High School was treated for suspected drug abuse on Wednesday.
The girl was rushed to Hairmyres Hospital in East Kilbride after she became ill in class, and was detained for observation.
An East Renfrewshire Council spokesman said: “A pupil became unwell at Williamwood High School on Wednesday morning and was taken to hospital for observation.
“The pupil was later discharged.
“We are working with Police Scotland as they investigate the circumstances of this incident.
“Drugs have no place in our schools and whilst incidents such as this are extremely rare they are however taken very seriously.
“Our teachers work hard alongside our on-site Campus Cops to ensure that pupils are educated on the dangers associated with substance misuse.”
It’s understood police enquiries into the incident are continuing.
Williamwood High School had its best ever S5 results this year – along with St Ninian’s, 55 per cent or more of S5 pupils achieved five or more Highers.