Gardai are seeking to identify three youths who broke into a school in Carndonagh.
The school, located at Church Road in the town, was entered between 8.45pm and 9.30pm on the evening of June 21st.
The youths ran through the school after gaining entry through a window and set off fire alarms.
Gardai say they have CCTV footage of the incident and have asked the youths to come forward.
Any further information can be given to Buncrana Gardai.