A BODY found near a major road at Sydney Olympic Park on Wednesday night, remains unidentified, with an initial post mortem only able to determine that it is a man of "unknown age and ethnicity".
Police were called to Homebush Bay Drive, 200 metres north of Australia Avenue at 10.30pm after the covered body was discovered on the side of the road by a truck driver who was setting up witches hats after his vehicle broke down.
Officers from Auburn Police Area Command established a crime scene at the area and the death is being treated as suspicious.
Local detectives are being assisted by State Crime Command's Homicide Squad, however a NSW Police spokesperson said they were yet to determine both the man's identity and how long his body may have been on the roadside.
Auburn PAC crime manager detective inspector Paul Arnold said the wet weather and heavy rain at the time of the body's discovery, was "not conducive" to conducting an examination at the scene.
"So in the best interests of preserving all the forensic evidence, the body was conveyed to Glebe City Morgue," he said.
Det Insp Arnold also called for public assistance to help identify the man and asked for anyone who had seen anything suspicious in the area to come forward.
"The dead cannot speak for themselves. We will need the community's help in solving this crime," he said.
Anyone who may have seen anything in the area, or has information, is urged to contact Crime Stoppers on 1800 333 000.