Appeal to locate missing teenager

She is described as Caucasian, 160cm tall with a slim build and long, straight, light-brown and blonde hair.

An image has been released in hopes she may be recognised.

Police believe she is travelling in a silver Ford Falcon sedan with registration UWV531 with a man known to her.

Police understand they may have travelled to Echuca and crossed the NSW border.

Sheanna was last seen in black pants and a hoodie; however, she likely has changes of clothes with her.

Anyone who sees her is urged to contact 000.

Anyone with information that could inform police about Sheanna’s whereabouts should call Crime Stoppers on 1800 333 000.