Police are appealing for public assistance to help locate missing South Yarra man Sead Tozo.
The 61-year-old was last seen about 7.30pm on Monday when he left to go for a walk from his Surrey Road residence.
Police and family have concerns for his welfare due to his age and ongoing medical conditions.
Sead is described as of Caucasian appearance, 175cm tall, with a slim build and long blonde/grey hair.
He has a spider web tattoo on his left elbow, speaks Bosnian but only understands basic English.
Police have released an image of Sead in the hope someone recognises him.
Anyone who sees Sead is urged to contact Prahran Police Station on 9520 5200.