MINEOLA, N.Y. (CBSNewYork) – A 14-year-old girl helped police capture the man who allegedly groped her.

Police say Peter Koonanikal was arrested at 4:35 p.m. Sunday at the Mineola State Fair.

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Police say after Koonanikal allegedly groped the girl, she snapped a picture of him as he walked away. She told her parent, who then spotted Koonanikal allegedly doing it again, this time to a 12-year-old girl.

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Police arrested Koonanikal without incident. He faces charges of sexual abuse, endangering the welfare of a child, and forcible touching.

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Anyone who thinks they may also have been victimized by him is urged to call police at (516) 573-6353.