Northern Territory Police are calling for witnesses after a woman was assaulted earlier this week in Darwin City.

A 43-year-old female was assaulted by an unknown person in the vicinity of Woods and McLachlan Streets sometime between 12am and 1am Wednesday.

Anyone who witnessed the incident, has information, or dash-cam footage is urged to contact police on 131 444 or anonymously via Crime Stoppers on 1800 333 000. Please quote reference 9748710.