Police officers were called to a north-east primary school after reports a child had a knife.
Officers attended at the Aberdeenshire school on August 31 after an eight-year-old had the blade in the building.
No one was hurt in the incident and staff dealt with the situation before calling the police.
The boy was reported to the youth justice management unit as a result.
It is the second incident involving a knife at a primary school to come to light in a matter of weeks.
Police were called to another Aberdeenshire primary school on September 10 after an incident involving a knife, following which a boy was also reported to the unit.
Schools across the region have been on high alert for pupils carrying weapons since the tragic death of Bailey Gwynne in 2016.
An Aberdeenshire Council spokeswoman said: “We treat any reports of knife incidents very seriously.”