A fire at Levenmouth Academy in Fife is being treated as deliberate.
The blaze broke out at the Leven school just after 5pm on Monday.
A police investigation has now been launched.
A spokesperson for Police Scotland said: “At around 5.10pm on Monday, police received a report of fire at Levenmouth Academy.
“The Scottish Fire and Rescue Service attended and extinguished the fire. No one was injured.
“The fire is being treated as wilful and inquiries are ongoing.”
The fire service confirmed it was called to Levenmouth Academy just after 5pm and stayed at the scene until 8.21pm before the school was handed back to the caretaker.
Shelagh McLean, head of education and children’s services at Fife Council, said: “The fire service and janitorial staff were on the scene quickly and the fire was contained before too much damage was done.
Levenmouth Academy suffers some damage after fire
“We understand that police are investigating the cause.
“The school has suffered some damage to an external wall and there is some internal impact of the smoke.
“We will be cleaning and airing the relevant areas of the building from today and checking the school systems.
“The building is able to be used today for the holiday activities and will be open as normal for pupils returning after the holidays on Monday.”
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