Police are appealing for public assistance to help locate missing St Kilda man Scott Jennings.
Scott was last seen leaving his Alma Road residence about 6.30pm yesterday.
He told a house mate that he was planning to go for a walk.
Police hold concerns for the 54-year-old's welfare as Scott has a medical condition requiring medication.
Scott is known to frequent St Kilda and the Melbourne CBD.
Scott is described as Caucasian in appearance, 165cm tall, stocky build, thin grey hair and wearing glasses with thick lenses.
Investigators have released an image of Scott in the hope that someone can provide information on his current whereabouts.
Anyone who has seen Scott or has information on his current whereabouts is urged to contact St Kilda police station on 9536 2666.