Police have found a man's body on a property at Jervois and are treating the death as suspicious.
They have also located a crime scene at a house on Tennyson Terrace, Murray Bridge which they believe is linked with the man's death.
A person with knowledge of the case is cooperating with detectives.
Officers found the body early on Wednesday evening about 250 metres east of the intersection of Jervois Road and Generals Corner Road, according to SA Police.
Detectives from Murray Bridge's criminal investigation branch and Adelaide's major crimes unit quickly cordoned off the scene and began investigating.
Police in Murray Bridge declined to reveal anything more about what had been found at the house.
They expected more information would be forthcoming in the morning.
Police have asked anyone who may be able to assist with the investigation to contact Crime Stoppers.
- Crime Stoppers: 1300 333 000 or www.crimestopperssa.com.au.