Detectives have arrested a man following a serious assault which occurred in Shepparton overnight.
The assault took place at a house on the corner of Poplar Ave and Paterson Rd just before 8pm yesterday.
Police responded to a call from neighbours and on arrival found the victim unconscious at the address.
The 51-year-old Shepparton man was airlifted to a Melbourne hospital with serious injuries.
Police have arrested a 43-year-old Shepparton man who is assisting with inquiries.
Police were unable to confirm whether the victim suffered stabbed wounds during the incident.
The house remains taped off this morning as police investigators and crime scene examiners from Melbourne gather evidence at the scene.
It is understood they will remain at the address for some time.
The investigation remains ongoing.