Thieves have stolen two blue Giant bikes worth $1000 and thrown a rock through the window of the old courthouse in Koroit.
Koroit police Sergeant Pat Day said the offending happened in the first week of the school holidays.
He said a lock was forced open to gain entry to a shed where the bikes were stored.
"Two blue Giant brand push bikes were stolen from the Koroit and District Primary School," eh said.
"A rock was also thrown through a window of the old courthouse, causing damage.
"Anyone with information about the offences is requested to contact Crime Stoppers on 1800 333 000 or the Koroit police station," he said.
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