The Northern Territory Police Force has arrested a 37-year-old male in relation to an aggravated robbery at a massage parlour in Darwin CBD overnight.

About 12:50am this morning, police received reports of two men allegedly entering the business, stealing cash and property, and assaulting the workers within.

A 37-year-old man was arrested nearby and is currently in police custody.

Serious Crime have carriage of the investigation and are making enquiries to locate the outstanding offender.