Police are appealing for witnesses to an indecent exposure in Rushden.
The incident took place between 6.30am and 7am on Saturday, August 18.
A 29-year-old woman was walking along Wellingborough Road in the town when a man indecently exposed himself to her.
The offender was a white man, in his late 30s, of average height and stocky build. He had short ginger hair and wore blue jeans and a white t-shirt.
Witnesses to this incident, or anyone with information about it, can call Northamptonshire Police on 101 or information can be given anonymously to Crimestoppers on 0800 555111.