Tasmania Police and emergency services attended the scene of a "sudden death" in Launceston about 9:15pm on Saturday night.
At least seven marked and unmarked cars lined Wellington Street about 100m South of Coles and the Eastern footpath of the Street was cordoned off.
At 10:30pm police were in attendance "undertaking examination as to the circumstances surrounding the incident".
Anyone with information should call Launceston Police on 131444 or report anonymously to Crime Stoppers on 1800 333 000 or crimestopperstas.com.au.
An updated will be provided tomorrow morning.