A 26-year-old man has been charged with an alleged indecent assault of a girl at an Alice Springs business, NT Police have said.

NT Police media manager Rob Cross said in a statement the man allegedly assaulted the girl about 3pm last Friday in an Alice Springs business and that he had also stolen clothing.

Mr Cross said members of an alcohol policing unit found him in the Todd River, and he was charged with one count each of aggravated assault and stealing, and was remanded to appear before Alice Springs Local Court on Wednesday.