NEW YORK (CBSNewYork) — Police are investigating a disturbing sex crime involving a young child inside a Union Square bookstore.

Investigators say a man grabbed a 6-year-old boy’s groin and backside inside a Barnes and Noble store on East 17th Street.

READ MORE: Search On For Driver Of Car That Killed Pedestrian, 52, In Brooklyn

It happened Wednesday at approximately 4 p.m. Police say the victim did not suffer any other injuries during the incident.

READ MORE: Suffolk County Police Officer In Critical Condition After Being Stabbed By Suspect Following Crash

Police are looking for a man who allegedly grabbed a six-year-old boy’s groin and backside inside a Barnes and Noble Store on East 17th Street on Aug. 29, 2018. (Credit: NYPD)

The NYPD says the suspect fled scene heading westbound on East 17th Street. He is described as 18-20 years old, approximately 5’8″ tall, weighing 170 lbs., with black hair and brown eyes. He was last seen wearing a multi-colored short-sleeved shirt, dark jeans and white sneakers.

MORE NEWS: 12-Year-Old Shot In Brooklyn Remains Hospitalized, Police Searching For Gunman

Anyone with information in regards to this incident is asked to call the NYPD’s Crime Stoppers Hotline at 1-800-577-TIPS (8477) or for Spanish, 1-888-57-PISTA (74782). The public can also submit their tips by logging onto the Crime Stoppers website or by texting their tips to 274637 (CRIMES) then enter TIP577. All calls are strictly confidential.