A 16-year-old boy was attacked in the street by a man who then stole his bag.
The boy was in Herriots Lane, close to the junction with Church Street, in Wellingborough at about 2.30pm on Monday, June 8, when a man pushed him over and stole his red, drawstring bag.
The offender was white, about 5ft 6in, stocky and wore a grey hoodie.
After the attack, the man ran away towards Great Park Street, where he got into a grey car and drove off.
Witnesses, or anyone who knows anything about the incident, can call Northamptonshire Police on 101 or they can call Crimestoppers anonymously on 0800 555111 or use the anonymous online form at www.crimestoppers-uk.org.