THE BRONX - Police say a man exposed himself to a teenage girl on the subway in the Bronx.

It happened on the 5 train last month. 

Police say the man got on the train from the Baychester station and sat across from the teenage girl.

They say he pulled his pants down and exposed himself to her. 

The victim immediately moved away and got off at the next stop while the man stayed on the train, according to police.

He is described as being 35-40 years old, and around 200 pounds. 

Anyone with information is asked to call the NYPD's Crime Stoppers hotline at 1-800-577-TIPS.