Police say they are following positive lines of inquiry after a 17-year-old was assaulted at a Mosgiel service station.
Senior Sergeant Anthony Bond, of Dunedin, said the incident happened at a Mobil station about 7pm yesterday.
A video posted on social media, apparently by the victim and filmed from inside his car on the forecourt, shows him being punched in the face by a middle-aged man several times.
The 17-year-old is understood to have escaped serious injury.