A man has been arrested after allegedly sexually assaulting a woman near Moulden oval on Tuesday night, NT Police said.

Police director of communications Mark Wilton said that about 8pm on Tuesday the 27-year-old man allegedly followed the woman whilst she was walking near Moulden oval, and then allegedly forced her to the ground and sexually assaulted her.

“The woman struggled with the male, resulting in him fleeing the location. Members of the public came to her aid and contacted police,” Mr Wilton said.

“Earlier this morning, detectives from the Sex Crimes Unit arrested a 27-year-old man in relation to the incident. At this stage it is believed the offender was not known to the victim.”

Police are asking anyone who witnessed, or has CCV footage of the assault, to call them on 131 444, (quote reference number P24321026), or make an anonymous reports by calling Crime Stoppers on 1800 333 000, or make a report through the Crime Stoppers website.