Police are seeking urgent assistance to locate a missing 55-year-old man from the Sunshine Coast.
Sean McDonald was last heard from on August 31 and has not contacted anyone since.
Police are concerned for his welfare as he suffers from a medical condition.
He is described as Caucasian, approximately 185cm tall, blue eyes and thinning brown hair.
Investigators believe he may be travelling in Imbil, or the greater Gympie area, in a distinctive Toyota Landcruiser with a canopy with Queensland registration 419 DU6 (pictured).
Sean may also have a dog with him (pictured).
Sean, or anyone with information regarding his whereabouts, is asked to contact 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.
Report crime information anonymously via Crime Stoppers. Call 1800 333 000 or report online at www.crimestoppersqld.com.au.