An elderly woman had her purse stolen from her bag when she was walking in Semilong.
The incident happened in Arnold Road at about 11.20am yesterday (Monday) when the 78-year-old victim felt somebody tug at her handbag.
She later discovered her purse was missing, containing two debit cards, loyalty cards, cash and a gift voucher.
A man was seen running past her and he is described as wearing dark trousers and a green coat with a fur trim on the hood. He wore the hood up.
Officers would like to speak to anyone who noticed anybody in the area at the time who matched this description
Witnesses or anyone with information about the stolen property are asked to contact Northamptonshire Police on 101. Alternatively, they can call independent charity Crimestoppers, anonymously, on 0800 555111.