Police in Hume and Whittlesea are calling on the public for assistance in locating missing person Elena.
The 16-year-old was last seen at Keon Park Railway Station at approximately 11pm on Friday, December 30.
She was last seen wearing black Nike track pants and a black Nike hoodie.
Elena is known to frequent the Werribee, Broadmeadows, Craigieburn, Bundoora, and Reservoir areas.
Anyone with information on her whereabouts is urged to contact Reservoir Police Station on (03) 9460 6744.