A 25-year-old man has been arrested by Northern Territory Police following the alleged assault of his partner in Alice Springs.

Police received a report of a domestic violence disturbance at a unit in Sadadeen just after 3am this morning.

Upon arrival, officers located a 23-year-old woman who had suffered a significant head injury.

Police administered first aid before the woman was transported to hospital by St John Ambulance.

Her 25-year-old partner was located nearby and arrested. He is expected to be charged later today with domestic violence-related offences.