Detectives investigating the disappearance of the Hull University student Libby Squire have released a previously unseen clip of the 21-year-old.
The four-second video, in which she is seen smiling and apparently joking with friends, has been released one month on from her last known sighting.
Libby’s mother Lisa Squire said: ”It's now been four weeks without our beautiful Libby. A month of utter heartbreak and despair.
“As a family we are incomplete. We miss her more than we could ever say. We just want her back with us."
Pictures via Humberside Police
Det Supt Martin Smalley, the senior investigating officer leading the investigation, said: "We have always kept an open mind as to Libby’s disappearance, hopeful we would find her and be able to return her home safely to her devoted and loving family.
However, he went on: "Libby’s disappearance remains unexplained and we must increasingly consider she has come to harm."
A CCTV camera filmed her on Beverley Road, at the junction with Haworth Street, on Friday, 1 February at 12.05am. There have been no further sightings or contact from Libby since this time.