The Northern Territory Police Force has arrested three youths in relation to a crime series that occurred across Katherine in recent days.

Two stolen motor vehicles, a Toyota Prado bearing NSW plates and an unregistered Toyota RAV4, remain outstanding after allegedly being involved in several offences overnight.

Both vehicles were sighted driving erratically, with the RAV4 reportedly performing burnouts in the CBD and the Prado allegedly chasing after a civilian vehicle forcing the victim to pull into a nearby service station.

In an incident believed to be linked to the stolen vehicles, a group of youths attended a pharmacy and allegedly attempted to steal items, damaged items in store and engaged in a disorderly behaviour.

During another incident, the vehicles could also be heard doing burnouts during a large general disturbance in the vicinity of Katherine High School.

A firearm reportedly stolen during an unlawful entry on Thursday that is believed to be linked, also remains outstanding.

Police responded and commenced investigations and three males aged 12, 14 and 15 have been arrested.

Investigations are ongoing to identify locate outstanding offenders and the two vehicles. Anyone with information or footage including CCTV or dashcam is urged to contact police on 131 444 or Crime Stoppers on 1800 333 000.