The Northern Territory Police Force is calling for witnesses in relation to a serious aggravated assault that occurred in Alice Springs in the early hours of this morning.

Around 10:45am today, police received reports of blood being found on the pavement outside an office building on Bagot Street in The Gap.

Upon review of CCTV, police observed at 4:45am this morning a male offender allegedly stabbed a female victim with an unknown object, before physically assaulting her multiple times. The victim was allegedly dragged from the area by the offender towards Tuncks Road.

Investigations have commenced and police hold concerns for the welfare of the victim.

The offender is described as being shirtless, wearing black shorts, black shoes and a light-coloured hat. The victim is described as wearing a light-coloured long-sleeved jumper, light-coloured pants, light-coloured shoes, with her hair tied up in a bun or ponytail.

Police are particularly interested in speaking to the drivers of multiple vehicles that drove past on Bagot Street and South Terrace at the time of the alleged assault.

Anyone with information is urged to call police on 131 444 and quote reference NTP2500036419. Anonymous reports can also be made through Crime Stoppers on 1800 333 000 or via https://crimestoppersnt.com.au/.

If you or someone you know are experiencing difficulties due to domestic violence, support services are available, including, but not limited to, 1800RESPECT (1800737732) or Lifeline 131 114. In an emergency dial 000.