A 25-year-old man suffered a serious head injury after an alleged car-surfing incident in Mosgiel last night.
Emergency services were called to the corner of King and Mure St following reports a man was injured in a car accident just before 7pm.
A St John spokesman said the man suffered serious head injuries.
Acting Senior Sergeant Ben Butterfield said only one vehicle was involved, and "it appears one of the occupants was riding on the roof".
"He has fallen off the roof at some point and suffered some pretty serious injuries."