Twenty-one windows at Dundee’s Braeview Academy were smashed during a “horrendous vandalism”.
Pupils at the school had to be moved to another part of the building due to the damage, which has seen a number of windows boarded up.
It is understood vandals threw bins through the windows to break them.
Email sent to Braeview Academy parents following vandalism
An email sent to parents by the Braeview Academy headteacher says the broken glass has now been cleaned up and the windows boarded over
Police are investigating the vandalism, which happened in the early hours of Sunday morning.
School staff have also told parents that officers will be increasing patrols around the area.
The email reads: “No doubt your children will have returned home today and informed you of the horrendous vandalism which took place at the school over the weekend.
“We are devastated that our pupils had to be moved to another area of the school while the broken glass of 21 double-glazed window units was swept up and portakabin windows were boarded up with wooden panels.
“Police Scotland has reassured me they will do everything in their power to identify the people who did this and also to have a presence around the school at nights, weekends and over the school holidays.”
A police spokesperson confirmed they had been made aware of the incident.
Dundee City Council has also promised to up security around the school.
A spokesperson added: “The council is assessing the damage and working with Police Scotland.
“We would appeal for anyone with information to contact police.”
Vandalism occurred one day before brutal assault near school
Just one day later, a 13-year-old boy was assaulted outside the nearby North East Campus school.
The youngster, understood to be a Braeview pupil, was taken to hospital following the attack.
Local councillor Jax Finnegan says the two incidents are a sign that young people in the area need more support.
She said: “What does concern me is some young people in Whitfield are filling their time with anti-social behaviour and indeed criminal behaviour.
“This to me is evidence these youths in this area need more positive community engagement.
“How we do this requires commitment, funding and ideas to come from the young people themselves.
“Youth workers are key, as they have the expertise in this field, and I will work with any groups to ensure positive opportunities for young people.”