Police are calling for the public to look out for a missing boy.
Sixteen-year-old Zac Sargeson was last seen in Dandenong on 25 January.
Police are worried because of his age and the length of time that he has been missing.
He is described as Caucasian in appearance, around 170cm tall, of large build and with brown eyes and brown hair.
Zac is known to frequent St Kilda, Nunawading, Ringwood, Ferntree Gully and Box Hill.
Police have released an image of Zac in the hope that someone may have information on his current whereabouts.
Anyone who sees Zac is urged to call triple zero (000) immediately.