Police are appealing for public assistance in their search for missing man Robert Ranclaud.
The last confirmed sighting of the 60-year-old was at the Ibis Sydney World Square hotel in April.
Robert was reported missing by family members this month.
During June, it's believed Robert may have spent some time in both Melbourne and Sydney's CBD.
It's believed he may be currently experiencing homelessness in Sydney.
Robert is described as being about 170cm tall with an average build, short grey hair and wears glasses.
Investigators have released a photo of Robert in the hope someone may recognise him and be able to provide information on his whereabouts.
Anyone who sees Robert or with information is urged to contact Greensborough Police Station on 8432 0200.
