The girl – believed to be in her “late teens” was seen in the area of Rozel Road, shortly after 16:00 where it’s believed she continued along La Couture towards La Vrangue.
Guernsey Police are asking anyone who was in the area at the time and saw her to contact DC 39 Simon on 725111. Information can also be given anonymously via Crimestoppers on 0800 555 111.