Northern Territory Police have arrested a 20-year-old woman following a stabbing incident at Tennant Creek yesterday morning.

About 9:40am police received reports of a stabbing at a residence on the outskirts of the town.

Investigations indicate a 19-year-old woman was in bed with her boyfriend when the boyfriend’s ex-partner allegedly entered the residence and stabbed the victim in the back.

The knife penetrated the victim’s lung, causing it to collapse.

The offender fled the scene immediately after the incident. The victim’s boyfriend was also assaulted and sustained a minor graze after being slashed at before fleeing the residence.

Police and St John Ambulance attended the scene. The victim was transported to Tennant Creek Hospital before being transferred to Alice Springs Hospital for further treatment.

The 20-year-old offender was located nearby and taken into custody without incident.

She has since been charged with:

• 1 x Unlawfully cause serious harm
• 1 x Aggravated assault
• 1 x Going armed in public
• 1 x Aggravated burglary – dwelling

The offender remains in police custody.