
The incident happened at around 10am on Thursday in Dumfries and Galloway.
Police Scotland said the boy suffered a “superficial injury” in the incident.
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A report is to be sent to the procurator fiscal.
A Dumfries and Galloway Council spokesman said: “The incident was dealt with quickly and appropriately. The school operated normally for the rest of the day.
“Police Scotland is investigating the matter and a report is being prepared for the procurator fiscal.
“It would be wholly inappropriate for us to make any further comment.”
Local councillor John Martin said: “It’s a very rare occurrence and I just hope it won’t happen again.”
Conservative Dumfriesshire MSP Oliver Mundell said: “It is always disturbing to learn of any such incident in a school, particularly one in my own constituency.
“Thankfully such reports are rare and the police will have to complete their investigation to establish the circumstances.
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Hide Ad“My thoughts are with pupils, staff and parents at a difficult time.”