Police are searching the Greenbank area for 22-year-old Lachlan Beckett, who was last seen this morning at 7.30am in Charlton Road.
Lachlan, who is very trusting, has a medical condition and may have become lost.
He is described as Caucasian, approximately 180cms tall with a proportionate build and short brown hair
Police are urging the local community to keep an eye out for Lachlan and to search their properties, yards and sheds.
Police are currently seaching in the vicinity of Carlton Road between Crest Road and Kallioota Street.
Anyone who may have seen Lachlan, or has information about his location, is urged to contact police.
If you have information for police, contact Policelink on 131 444 or provide information using the online form 24hrs per day.
You can report information about crime anonymously to Crime Stoppers, a registered charity and community volunteer organisation, by calling 1800 333 000 or via crimestoppersqld.com.au 24hrs per day.