Toronto police have released a photo of a man accused of performing an indecent act on the GO Train. 

A 37-year-old woman was travelling on the train from Aldershot to Union station on Tuesday around 1 p.m. when a man seated nearby allegedly performed the act, police say.

The woman took a picture of the man and he fled at the next stop, police say.

He is described as between 40 and 50 years old with short, brown receding hair. He was wearing glasses, a red winter jacket with grey inner arms and distinctive silver flashes on the shoulders, blue jeans and a blue shirt. 

Anyone with information is asked to contact police at 416-808-5200, Crime Stoppers anonymously at 416-222-TIPS (8477).