Police are appealing for public assistance to help locate missing man Timothy McDonald.
The 45-year-old was last seen in Sunbury on 3 March.
He is described as 168cm tall with a medium build, blonde hair and blue eyes.
It is believed he may be in Newcastle or Stockton in New South Wales and making his way to Byron Bay.
Investigators have released an image of Timothy in the hope someone may have seen him and can provide information regarding his whereabouts.
Anyone who sees Timothy is urged to contact Keilor Downs Police Station on 9365 3333.