Wagga Police Superintendent Bob Noble said a security alarm went off at 9.30pm on Monday at a Murray Street college.

"Security attended and called police," he said.

"They found a 30-year-old male on the premises. He was arrested and bail refused."

Superintendent Noble said police had found the man "cowering behind a vending machine" and they seized implements used to allegedly break-in.

The 30-year-old was due to appear before court on Wednesday.

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