A 61-year-old woman had her handbag stolen as she walked along Baker Street in Wellingborough on Friday, August 31.
The incident happened sometime between 8am and 8.20am, when a man walked up to the woman and demanded her handbag.
The woman handed it over and the man made off.
He was a white man, about 5ft 10in, of medium build, with short, sandy coloured hair and spoke with an Eastern European accent.
Officers would like to speak to anyone who may have witnessed this or who may have any information about it.
Witnesses to this incident can call Northamptonshire Police on 101 or information can be given anonymously to Crimestoppers on 0800 555111.