Northern Territory Police are calling for witnesses in relation to an alleged indecent assault in Alice Springs last night.

Around 10:20pm, two women were walking in the area of Ross Park Oval when they were approached by a male. The male allegedly assaulted one of the women before leaving the scene.

Police immediately attended however were unable to locate the male.

The male is described as a light-skinned Caucasian in his thirties, approximately 179 centimetres tall, solid build, with brown hair. He was wearing dark shorts, possibly denim, a dark t-shirt and thongs.

Any witnesses or anyone with information is urged to contact police on 131 444 or Crime Stoppers on 1800 333 000. Please quote reference number 9418828.