Regina police continue their investigation into an Agribition death.

Regina police say they're worried their investigation into the sudden death of an Ontario rancher might get more complicated.

They say the farm fair where 52-year-old Charles John Watson died has wrapped up, and some potential witnesses have gone home.

Police are not treating Watson's death as a crime but say there are suspicious elements to it.

His body was found a week ago in an alley between the Agribition building and some barns.