A Douglas primary school was attacked by vandals at the weekend.
They caused £150 worth of criminal damage to drain pipes and smashed bottles in the playground at Willaston (pictured).
Police are particularly concerned about the harm which could have been done to children by the broken glass.
Anybody who knows who was responsible is asked to ring Police Headquarters on 631212, or the anonymous Crimestoppers line, on 0800 555 111.
"He enjoyed hearing the Manx national anthem!": King greets guests at Government House
His Majesty meets representatives of the Manx community at Garden Party
Crowds gathered in glorious sunshine to see the Monarch
Live blog: King Charles visits the Isle of Man
Updates from the Lord of Mann's first visit to the Island since ascending to the throne
King speaks of Island's 'enduring partnership' with the crown
King Charles III spoke in Tynwald this lunchtime