Police are appealing for public assistance to help locate missing 12-year-old Mernda girl Lara Nguyen.
Lara was last seen at a Swanston Street shopping centre on 10 December about 9.30pm.
She is described as Asian in appearance, 145cm tall with a slim build, black hair and brown eyes.
Police and family hold concern for her welfare due to her age and the length of time she has been missing.
Lara is known to frequent the Melbourne CBD, South Morang and Mernda areas, and frequently uses trains for transport.
Investigators have released the below image of Lara in the hope that someone may have information on her current whereabouts.
Anyone who sees Lara is urged to contact Mernda Police Station on 9216 1200.