Warrnambool Crime Investigation Unit detectives are appealing for witnesses following an assault at a festival in Macarthur last night.
Police have been told the incident occurred while patrons were lining up to catch organised buses home, in the vicinity of the property on Mount Eccles Road, about 11.10pm.
It appears the victim was assaulted following a dispute between a number of people in the line.
The 41-year-old Penshurst man has been airlifted to a Melbourne hospital with suspected critical injuries.
Three Portland men, two aged 45 and a 48-year-old, were arrested at the scene and are currently assisting police with their enquiries.
Detectives are appealing for anyone who was in the vicinity of the altercation or with information to come forward.
Anyone who witnessed the incident is urged to call Crime Stoppers on 1800 333 000 or log onto www.crimestoppersvic.com.auExternal Link.
