Police are growing increasingly concerned about the welfare of an 18-year-old woman from Oxford.
Sarah Spence, from Watermill Way in Headington has not been in contact with friends or family for three days.
She was last seen at 0900 BST on Wednesday when she left her grandmother's house in Elton Crescent, Wheatley.
Thames Valley Police is renewing its appeal for the public's help in finding her.
Sarah is white, approximately 5ft, thin, with medium length brown hair that is normally tied back in a pony tail.
She was wearing blue jeans, brown Ugg boots and may have been carrying a black bag.
Sgt Samantha Lewis said: "We are concerned for Sarah's welfare and we would urge her, or anyone who knows of her whereabouts, to make contact with us as soon as possible.
"We would also like to speak to anyone who may have seen her since she went missing, or who has spoken with her."