Police are appealing for witnesses following an armed robbery in Ashburton this afternoon.
Investigators have been told a 16-year-old boy was approached by a male on High Street around 2pm.
The male attempted to grab the boy's bag then assaulted him with a sharp object.
He was taken to hospital with non-life-threatening injuries.
The offender fled with the victim's bag along Welfare Parade, heading north, then east down a laneway.
The offender is perceived to be Caucasian in appearance, approximately 16-years-old, about 170cm tall with a slim build and long blond hair.
He was wearing a black top and grey tracksuit pants.
The investigation remains ongoing.
Anyone with information or dashcam/CCTV footage is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential crime report at www.crimestoppersvic.com.au