Police are appealing for witnesses following an attempted robbery outside a shop in Milton Keynes.
The appeal follows an incident that happened at 10.40pm on Thursday 27 December.
The victim of the offence was a 15-year-old boy, who was with his mother as they walked out of the Tesco Express store in Redgrave Drive, Oxley Park.
He was approached by a man who demanded money and his phone.
The man attempted to take a mobile phone from the victim and a struggle ensued during which the victim struck the offender, knocking him to the ground, before officers arrived.
Designated investigator David Graham said, “This attempted robbery of a teenage boy occurred in a busy area when there were other members of the public nearby.
“I would like to speak to anyone who saw what happened or has any details which may assist our enquiries.”
Anyone with any information which could assist the investigation please contact the 24-hour enquiry centre on 101 quoting the reference 43180393767 or you can make a report online on the Thames Valley Police website.
People who do not wish to speak to police can call the independent charity Crimestoppers anonymously on 0800 555 111.