Five offenders have been arrested in relation to an aggravated robbery in Casuarina last night.

Around 9:45pm,the Joint Emergency Services Communication Centre received information a 19-year-old male was approached by four males wearing masks who pulled him out of his vehicle, allegedly assaulted him and threatened him before stealing the vehicle and fleeing the scene.

Strike Force Trident investigated and recovered the vehicle, identifying that there were six offenders involved.

Five offenders have been arrested including two females aged 16 and 15, two 15-year-old males and a 12-year-old male.

Investigations are ongoing and anyone with information or footage including CCTV is urged to contact police on 131 444 or Crime Stoppers on 1800 333 000 or report anonymously via crimestoppers.nt.com.au