Police are appealing for public assistance to help locate missing teenager Oliver Byrne.
The 15-year-old was last seen leaving his Heidleberg West address about 11pm on 28 March.
It is believed he may be travelling to New South Wales in a white Holden Barina bearing plates 1IT 4OT.
He also could be heading to Mount Gambier, South Australia or Malmsbury, Victoria.
Police have released an image of Oliver in the hope someone recognises him and can provide information on his whereabouts.
Oliver is approximately 168cm tall, with a medium build, blue eyes and blond hair.
He was last seen wearing a black hooded jumper, black tracksuit pants and black shoes.
Anyone who sights Oliver or has information on his current whereabouts is urged to contact Heidelberg Police Station on 9450 8000.