Police are trying to trace the driver of a white van who is believed to have witnessed an assault in Carlton.
At around 5pm on Friday 20 January 2017, a 55-year-old man was attacked by three other men opposite the Esso Petrol Station on Westdale Lane. He was knocked into the road and a white van had to brake sharply.
The van stopped further down the road, a man got out of the vehicle and shouted at the men involved who then left in a silver coloured car.
The van in the photo is small with signage on the back and sides. If you recognise it or have any other information that could help, please contact Nottinghamshire Police on 101 quoting incident 639 of 20 January.