A Newcastle family is appealing for help to find their teenager daughter missing since Wednesday, September 11.

15-year-old Trinity Thompson was last seen at her family’s Cooks Hill home.

She is described as being of Caucasian appearance, of a slim build, around 150cm tall with braces, a nose piercing, and long hair which is dark at the roots and light on the ends.

Appealing for help on social media, Trinity’s father says it’s unlike his daughter to disappear like this.

The teen is known to have a large network of friends in the Kotara, Hamilton South, Adamstown and New Lambton areas.

Anyone who sees Trinity is urged to contact Newcastle Police.

Trinity Thompson