Police are pursuing multiple lines of inquiry to establish the circumstances which led to the death of a 32-year-old Victorian man at a Hobart dock on Thursday morning.
A jogger passing by Victoria Dock saw a man in distress in the water at 4.30am and called police.
Police arrived at the scene within minutes, however the man disappeared below the water line.
A man's body was found by police divers at 6.15am.
Tasmania Police Acting Inspector Darren Latham said the man was in Tasmania for a work-related trip and had been with work colleagues earlier in the morning.
"What we are concentrating on at the moment is a timeline between 1.30am and 4.30am this morning where we still can't determine the movements of this man and can't determine why and how he has ended up in the water," Acting Inspector Latham said.
Acting Inspector Latham said the potential the man had been drinking and the potential of trip hazards being located near the water would form part of the investigation.
"Our investigators will look at all the scenarios that could have unfolded this morning," he said.
"At this stage there is nothing to indicate any suspicious circumstances."
Acting Inspector Latham said anyone who saw the man in the vicinity of Victoria Dock, between Evans and Argyle Streets, and the wider Hobart waterfront area between 1.30am and 4.30am was asked to come forward.
The man is described as early 30s, of Asian appearance, slim build, clean shaven with short dark hair. He was wearing black slacks, a blue long sleeve business shirt, grey linen jacket and brown RM Williams boots
Information can be provided to Tasmania Police on 131 444 or anonymously to Crime Stoppers on 1800 333 000.
A report will be prepared for the coroner.