Vic man missing in Yarra River

His worried friends later tried to find him before contacting police to report him missing.

The area is part of the Warrandyte State Forest. One side of the river is a popular walking track for locals and the other is covered by dense bushland. 

Acting Sergeant Will Calleja was unable to questions about whether the man was a local or visiting the area. 

He said a large search effort was underway with the air wing, police divers, foot patrols, boats and the SES taking part. 

"We've searched an area of four kilometres across the river," Act Sgt Calleja told media at the scene. 

Anyone with information is urged to contact Crime Stoppers on 1800 333 000.