Northern Territory Police are calling for information after an aggravated robbery in Alice Springs today.

Around 2:15am, it is alleged that an unknown male wearing a two-toned grey Puma hoodie with Puma written on both sleeves, khaki coloured shorts, black socks and white sneakers, approached a service station on the Stuart Highway in Alice Springs.

The male attended the service window and threatened an employee with what allegedly appears to be a firearm.

The male immediately fled on foot in the direction of Schwarz Crescent. A report was made to police shortly after the incident.  

Officers from Operation Grimmel, Strike Force Viper and Crime deployed to the area but the male could not be located.

Police urge anyone who witnessed the incident, or who has information, to contact police on 131 444 and quote reference number NTP2400068649.  

Anonymous reports can also be made through Crime Stoppers on 1800 333 000 or via https://crimestoppersnt.com.au/.