Investigators say the words "snot" and "booger" have been painted on at least 20 different places this year in Cary.
Police say the graffiti isn't believed to be gang-related and hasn't caused any permanent damage. But Capt. Don Hamilton says removing the graffiti is costly and the problem can't be overlooked.
Authorities say they are accepting anonymous tips about the graffiti on its CrimeStoppers line.
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