A man has been arrested as part of the investigation into the death of a man in Jung yesterday.
Emergency services were called to reports of a man's body located off the Henty Highway near Finlayson Road about 9.15am.
The deceased man, believed to be approximately 60 years-old, is yet to be formally identified, and the cause of his death is yet to be determined but is being treated as suspicious.
On Monday evening, police were notified of a man behaving erratically on Firebrace Street in Horsham around 8.30pm.
Officers negotiated with the man who was armed with a knife before he was arrested about 11pm.
The 49-year-old Minyip man was transported to hospital and is expected to be interviewed by Homicide Squad detectives at a later stage.
The investigation remains ongoing.
Anyone with information that could assist investigators is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report online at www.crimestoppersvic.com.au