The NT Police Force has arrested a 15-year-old male in relation to an assault that occurred at a school in Tennant Creek earlier today.

Around 12:05pm, the Joint Emergency Services Communication Centre received a report that a staff member at a high school on Stuart Street had been assaulted by a student.

It is alleged the 15-year-old male student had physically assaulted an adult female staff member, before leaving the school grounds.

Police attended and conveyed the victim to hospital for assessment. Shortly after 3pm, the offender was arrested at a residence in Ambrose Street.

He remains in police custody with charges expected to follow.

Anyone with information is urged to contact police on 131 444. Please quote reference number P26063637. Reports can be made through Crime Stoppers on 1800 333 000 or via https://crimestoppersnt.com.au/.