MELBOURNE-BASED police search and rescue squad officers yesterday combed the Merri River north of the Warrnambool saleyards in the search for missing 49-year-old Warrnambool man David Earl.
Mr Earl was last seen at his workplace, Environmental Fluid Systems on Coghlans Road, near the search site, about 4.30am on Friday.
Sergeant Greg Cresall, of Warrnambool police, said it was feared Mr Earl had harmed himself or attempted to disappear.
He said there was little to add in relation to the search.
Search and rescue officers inspected the Merri River area yesterday but with no result.
Mr Earl is believed to have disappeared without his mobile telephone, bank cards, keys and wallet.
State Emergency Service volunteers did line searches at the back of his work premises near the Merri River on the weekend and a police dog has also been involved in the hunt.
Mr Earl was expected to attend a work commitment on Friday but did not appear.
A woman who answered the telephone at Environmental Fluid Systems on Monday said she was not authorised to make any comment on behalf of the business.
Mr Earl is described as Caucasian with a fair complexion. He is about 170cm tall, thin, has grey receding hair and was last seen wearing a white shirt, dress pants and glasses.