Police are asking for the public’s help in identifying and locating a man who exposed himself on a train in Brooklyn last week.

On Monday at about 2:30 p.m. the suspect exposed and began to masturbate in front of a 43-year-old victim while on the northbound F train at the 7th Avenue station in Brooklyn, according to cops.

RELATED: Subway rider stabbed 4 times in the butt: NYPD

A photo of the suspect taken on the train has been released. 

Anyone with information about the incident is encouraged to contact the NYPD's Crime Stoppers hotline at 1-800-577-TIPS. Tipsters can text information via 274637 (CRIMES) and then entering TIP577, too. 
 
The public can also submit tips online at www.nypdcrimestoppers.com.