The bones were unearthed by workmen conducting building works on Crofton Street at Victoria Park in Echuca on February 13.
The bones have since been determined to be human.
Police have established a crime scene at the park and enquiries are under way.
The bones will undergo forensic testing.
The circumstances surrounding the death of the person, including whether the matter is suspicious, are yet to be determined.
Echuca is located 214 km north of Melbourne on the banks of the Murray River.
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