Police are appealing for public assistance to help locate missing man David Cameron.
The Thailand resident, who was back in Melbourne for a short trip, was last spoken to by a friend over the phone about 8pm on Tuesday 14 May.
It is understood he may have been heading to South Australia for a fishing trip.
Police and family members hold concerns for David's welfare as his disappearance is out of character.
An image of David has been released in the hope someone recognises him and can provide information on his whereabouts.
He is described as about 168cm tall with a medium build, blue eyes and shaved head.
He has stitches visible on the top of his head and back from recent surgery, and has a distinctive birth mark running from his lower right leg down to his foot.
Police believe David may be driving a burgundy 2004 Holden Rodeo with a white canopy and registration 1NT3PO.
Anyone who sees David or may know of his whereabouts is urged to contact Keilor Downs Police Station on 9365 3333.
