Lincolnshire Police are appealing for witnesses after a 15 year old boy was hit in the face by a masked man.

The incident happened between Dysart Road and The Drive in Grantham at around 3.15pm on Monday, March 11.

The boy did not sustain any lasting injury and nothing was stolen.

Police have said the motive for the assault is unknown.

The offender is described as being white, around 5ft 10ins tall and slim. He was wearing a mask or balaclava obscuring his features, a khaki green tracksuit and Nike footwear.

If you saw the incident, or have any information that could help the police enquiry, call 101 with reference number 277 of March 11. Alternatively you can email [email protected].