A teenager was attacked and robbed in a Rushden alleyway on Christmas Day.
The 15-year-old was in an alley between Co-Operative Row and Griffiths Street at about 11.30pm on Friday, December 25, when he was approached by a stranger.
He punched the boy in the face and stole his bag.
The thief was white and wore grey jogging bottoms and a hooded top.
Witnesses or anyone who knows anything about this incident can call police on 101 or Crimestoppers anonymously on 0800 555111.