A land and air manhunt continues near Deloraine for a knife-wielding suspect after a suspicious death at a Reedy Marsh property.
Emergency services were called to a home on Larcombes Road on Tuesday evening and found a man's body inside.
Two men and a woman are already being questioned while police are searching for another man.
The public is being warned against approaching him if they see any suspicious activity in the area; any sightings should be reported immediately to triple zero (000).
It's believed he may have camouflage paint on his face.
Detectives and forensic officers remain at the scene assisted by the Westpac helicopter.