Two men wearing balaclavas tried to grab a handbag from a girl walking in Wellingborough.
The 19-year-old victim was walking along Gannet Lane towards Fulmar Lane when the two offenders approached her and tried to steal her handbag, which was worn across her body.
But they failed to grab the handbag and the victim ran away.
The offenders are believed to be male and wore dark clothing, balaclavas and gloves.
The victim, while running home, spoke loudly on the phone about the attack, which took place at about 8.40pm on Tuesday, January 20, and may have been seen or heard by witnesses.
Anyone with any information can call Northamptonshire Police on 101 or Crimestoppers confidentially on 0800 555111.