Police are still sifting through scientific evidence gathered as a result of an alleged sexual assault of a tourist in Katherine earlier in the month.
No arrests have yet been made on the early morning incident at the car park on the corner of Railway Terrace and Victoria Highway.
The Katherine Times is aware some visitors choose to stay in their vehicles overnight to avoid paying for the town's many accommodation facilities.
In a frighteningly similar incident, two German tourists were sexually assaulted in Katherine in the early hours of the morning during August 2017 while parking in the Visitor Centre car park.
Police said the young women, aged 20 and 26, were sleeping in their vehicle after it broke down.
At the time, police warned other visitors thinking of sleeping in unsecured areas.
In this latest incident, police are looking for a man who allegedly assaulted the sleeping tourist.
The man said another man, aged between 20 and 30, approached the vehicle and broke in.
Police have not released information about the extent of the assault but are calling on witnesses to help.
Police are describing the offender as an Indigenous male, aged between 20 and 30, standing at about 175 centimetres tall with mid-length curly hair.
"He was wearing a black and red striped shirt and dark shorts," a NT Police spokeswoman said.
Police today said their investigations were continuing.
"A number of items have been submitted for forensic examination," a spokeswoman said.
Anyone with information in relation to this incident is urged to notify police on 131444 or Crime Stoppers on 1800 333 000. Please quote reference number 9022608.