This is the man the MBTA Police believe committed a sex act on an Orange Line train.

MBTA Police

Photo:

The MBTA Police would like to have a long talk with a man they believe committed a sex act on a southbound Orange Line train.

T Police released the suspect's photo on Tuesday, but said the man committed the "unspecified lewd act" at 1:25 p.m. on Oct. 14.

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Investigators said the man appears to be roughly 40-years-old, and was seen wearing a blue and white hoodie with a big letter “O” on it with wings on the side. He was sporting green pants, a blue baseball hat and brown shoes.

Authorities say he got off the train at Forest Hills and headed towards the upper bus area.