Northern Territory Police hold concerns for a missing 13-year-old Alice Springs girl.

She has not been seen since she left her Bath Street home around noon on Thursday 7 March when she planned to walk to the 24-Hour Store on Gap Road.

She is Aboriginal, 160cm tall, weighing 50 to 55 kg with a skinny build and black hair with a dyed yellow streak.

She was last seen wearing a black t-shirt, black pants with an army pattern and black thongs.

Anyone who may have any information regarding the whereabouts of the missing girl please contact police on 131 444 and quote number NTP2400025524.