Northern Territory Police are calling for public assistance on the whereabouts of 17-year-old Curtis Crispin.

Mr Crispin is wanted in relation to the alleged unlawful use of a motor vehicle, stealing and assault.

He is believed to be actively avoiding Police and travelling between Katherine, Lajamanu and Balgo.

He is descried as being of Indigenous appearance, 165cm tall, and of slim build.

Police urge the public not to approach Mr Crispin but to instead call Police on 131 444 or Crime Stoppers on 1800 333 000 if you have any information of his whereabouts.