Police are appealing for public assistance to help locate missing Sunshine North 14-year-old, Phyllis Siu.
The teenager was last seen at Flinders Street Railway Station about 5pm on Monday.
Police and family are concerned for her welfare due to her age and the length of time she has been missing.
An image of Phyliss has been released in the hope someone will come forward with information about her current whereabouts.
She is known to frequent Sunshine and the surrounding area.
Anyone with information is urged to call Sunshine Police Station on 9313 3333.