Police are looking for a man who masturbated on the subway in front of a woman this week.

The incident happened around 8:30 p.m. on Friday aboard a southbound R Train. The 27-year-old victim said that around the East 59th Street/Lexington Avenue station, the man in the photo above was "rubbing his exposed, erect penis."

The woman took a photo of the suspect then got off the train. The bearded suspect was last seen wearing blue jeans, a plaid shirt, a blue and red vest and a black knit cap.

Anyone with information in regards to this incident is asked to call the NYPD's Crime Stoppers Hotline at 800-577-TIPS. The public can also submit their tips by logging onto the Crime Stoppers Website or texting their tips to 274637(CRIMES) then entering TIP577. All calls are kept strictly confidential.