NEW YORK (CBSNewYork) — New York City police are looking for a man who is accused of touching himself on a subway platform in Brooklyn then groped a woman when she tried to walk away.

Police say the 51-year-old female victim was standing on the B/Q platform at the Atlantic Subway station around 6:20 p.m. Friday when the suspect began to masturbate in front of her.

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The woman walked away, boarded the train, with the suspect following her, police say. The suspect then reportedly grabbed the victim’s buttocks. Once on the train, the victim took a photo of the suspect.

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Anyone with information in regards to this incident is asked to call the NYPD's Crime Stoppers Hotline at 800-577-TIPS.

Anyone with information in regards to this incident is asked to call the NYPD’s Crime Stoppers Hotline at 800-577-TIPS.

There were no reported injuries.

Anyone with information in regards to this incident is asked to call the NYPD’s Crime Stoppers Hotline at 800-577-TIPS.

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The public can also submit their tips by logging onto the Crime Stoppers Website at WWW.NYPDCRIMESTOPPERS.COM or texting their tips to 274637(CRIMES) then enter TIP577.