Police in Coleraine are growing concerned for the wellbeing of a woman who is visiting from China and has been missing since the weekend.
Lily Xue, who is 25, was last seen at the local hospital at around 10pm on Saturday.
She left the hospital with a medical vent in one arm.
She is described as being about 4ft tall and of a very slim build. She was wearing a grey/black tweed jumper and jeans.
Inspector Colin Shaw said: “Lily has poor spoken English. She was staying with a friend in Portstewart and we are keen to hear from anyone who has seen her, or any motorist or taxi driver who may have noticed her on the road or given her a lift on Saturday night.”
Information can be given to police in Coleraine on the 101 non-emergency number.