Missing Nida Naseer: No new leads after family's appeal
An emotional video appeal by missing Nida Naseer's family has failed to generate any new leads, police say.
On Friday, footage of the 19-year-old's mother, father and sister pleading with Nida, from Newport, to return home was released.
But the force said no new information had been given since and her disappearance is a mystery.
Nida vanished from her home exactly a month ago on 28 December while putting the bins out.
She was not wearing shoes and did not have her phone, money or coat with her.
A team of 20 officers is continuing to work on the case, but no further searches have been planned.
Hours of CCTV are also being viewed.
To coincide with Nida's 19th birthday on Saturday, her father and mother Naseer and Najma Tahir, together with her sister Shamyla Naseer, appeared in a filmed appeal.
In it Miss Naseer can be heard telling her missing sister she cannot live without her.
Two weeks ago a CCTV image of Pakistan-born Nida, taken just before she disappeared, was released by the force.
But police have not found any similar images of her since she vanished.
Officers have been dedicated to the search and have scoured the city of Newport since she went missing.
They have searched near Coleg Gwent's Nash Road campus, Lliswerry High School, the Transporter Bridge, George Street bridge and the waterfront near Rodney Parade stadium.
It was revealed Nida's family sought asylum after coming to the UK from Pakistan five years ago. Their application was turned down a year ago and they are currently appealing.
They believe Nida vanished because their asylum-seeker status barred her from attending university.
Nida was last seen wearing jeans and a black top. She has long dark hair, is slim and is 5ft 3in (1.6m) tall.
Gwent Police want anyone with information to contact 101.