The Northern Territory Police Force is seeking public assistance in the search for missing 5-year-old Sharon in Alice Springs.

Around 1:35am on Sunday morning, police received reports that Sharon could not be located at her residence on Marshall Court, Old Timers Camp, Alice Springs. It is believed she was last seen around 11:30pm on Saturday evening.

Police have conducted an initial search of the area utilising extensive resources and have been unable to locate Sharon.

She was last seen wearing a dark blue short-sleeve T-shirt with a white ring stripe around the neck and a white ring stripe around the end of the sleeves, and a pair of black boxer style underwear.

Police are seeking public assistance to locate 47-year-old male, Mr Jefferson Lewis, who police believe can assist with enquires.

Anyone who knows the whereabouts of Mr Lewis or Sharon, or who has any information at all, is urged to call police on 000. Please quote reference P26120934.

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