Northern Territory Police have arrested an 18-year-old male and an 18-year-old female in relation to an alleged aggravated assault that occurred at around 12:30am this morning.

Two males and a female aged between 18 and 19 years, drove to a car park in Katherine, where they allegedly confronted a 15-year-old female and an 18-year-old male.

The 19-year-old male allegedly threaten the victims with a bow-and-arrow before releasing a dog which attacked the 18-year-old male victim. The 15-year-old female victim was also assaulted.

The group of three left the scene and two of them were located and arrested by Katherine general duties police a short time later.

Police continue to search for the outstanding 19-year-old male allegedly involved with this incident.

The 18-year-old victim was conveyed to Katherine District Hospital where he received medical treatment for injuries sustained as a result of the alleged dog attack.

Police are urging anyone with information to contact police on 131 444 or anonymously via Crime Stoppers on 1800 333 000. Please quote reference number 9215994.