Police have issued a picture of a Wellingborough man they wish to speak with in connection with alleged harassment.
Officers say are keen to locate the 33-year-old, but have not named him.
They say he may be able to assist the investigation and are urging him to make contact.
Anyone with any information relating to his whereabouts can contact Northamptonshire Police on 101.
Alternatively, they can call the independent charity Crimestoppers anonymously on 0800 555111.