North Yorkshire Police is appealing for witnesses and information about an assault that occurred in Pickering.
It happened on the Market Place at quarter to one (00:45am) in the early hours of Sunday 23 April, when a man was punched to the ground by another man who was driving a dark grey or black pick-up type vehicle.
The victim suffered from concussion after hitting his head on the ground, but did not require hospital treatment.
Police are appealing for information from anyone who may have witnessed this or know who was responsible.
Anyone with information that could assist the investigation should email paul.southgate@northyorkshire.police.uk. You can also call North Yorkshire Police on 101, select option 2, and ask for PC1471 Paul Southgate.
If you wish to remain anonymous, you can pass information to Crimestoppers on 0800 555 111.
Please quote the North Yorkshire Police reference number 12230073284.