Northern Territory Police have arrested a 16-year-old male youth in relation to an aggravated robbery in Alice Springs on Friday night.

Around 11.30pm, police received reports of an aggravated robbery outside of a residence on Todd Street. A male youth allegedly followed three females to the residence from a nearby restaurant.

The youth allegedly assaulted one of the victims with a blunt weapon, during which she suffered injuries to her shoulder and back. He then allegedly assaulted a second victim and proceeded to steal personal items from her before fleeing the scene.

A 16-year-old was identified a short time later via CCTV and subsequently arrested by detectives from Strike Force Viper.

He remains in custody charged with the offences and is to appear in court later today.

Northern Territory Police continue to urge anyone who witnesses crime or anti-social behaviour to make contact on 131 444 or Triple Zero (000) in an emergency.

Anonymous tips can also be made through Crime Stoppers on 1800 333 000 or via https://crimestoppersnt.com.au/.