Robert Devlin was last seen in Alfred Street at around 4am today.
Police and his family hold serious concerns for his welfare as he suffers from a medical condition and has left without required medication. He also left behind his walking cane.
Robert is described as Caucasian, around 190cm tall with a solid build, brown hair and blue eyes.
When last seen this morning, he was wearing black tracksuit pants and a t-shirt.
Robert, or anyone who knows his whereabouts, is urgently asked to make contact with police.
If you have information for police, contact Policelink by providing information using the online suspicious activity form 24hrs per day at www.police.qld.gov.au/reporting or call 131 444.
Report crime information anonymously via Crime Stoppers. Call 1800 333 000 or report online at www.crimestoppersqld.com.au.