South Australia Police are looking for missing woman Rachael Moritz, who they believe may be in Tasmania following an unconfirmed report that Ms Moritz was at Adelaide Airport on Sunday, December 23.
South Australia Police also say she could have been in the company of a middle aged woman at the time.
Detectives have no information to suggest that Ms Moritz is being held against her will.
The 20 year-old was reported missing on December 30.
South Australia police understand she spoke to a family member on New Years Day, however, it is important police speak with Ms Moritz to confirm she is safe and well.
Anyone who has any information is asked to contact Crime Stoppers on 1800 333 000 or at www.sa.crimestoppers.com.au