Police in Kirkcudbright want to speak to the owner of a silver Rover or MG seen in the St Mary's Isle area of the town on around 11pm on Saturday night.
The appeal comes after a 23 year-old man was assaulted there an altercation at a festival.
He is in a stable condition in hospital.
More top news
A look ahead at the forecast for the Border region.
Cumbria Police have been praised for the way they work with victims of crime, according to a new report by HMIC.
A mental health ward in Kendal is to remain open until the outcome of a delayed public consultation into its future.