NEW YORK (CBSNewYork) -- Police were searching Wednesday for a suspect they say committed a lewd act in front of a woman on the A Train in downtown Brooklyn last week.

Around 9:30 a.m. this past Friday, the 37-year-old woman was on an A Train near the Jay Street-MetroTech station, when the suspect began masturbating in front of her, police said.

The victim took a photo of the suspect, and the suspect then fled the train, police said.

The suspect was described as being in his mid-20s, police said.

Anyone with information was asked to call the NYPD Crime Stoppers at (800) 577-TIPS, log onto the Crime Stoppers website, or text tips to 274637 (CRIMES) and enter TIP577.