Police looking for a missing university student in York are focusing their search on the river that runs through the city - and CCTV footage that shows the last time she was seen.
Megan Roberts disappeared in the early hours of Thursday morning during a night out, but friends and family only realised on Monday that she was missing.
Officers are scouring the bank of the River Ouse in York.
Police have said there is "nothing to suggest" there is anything suspicious is behind her disappearance.
CCTV footage shows the York St John University student with a group of friends on one side of the river - but absent from the group when they are on the other.
The 20-year-old was reported missing by her mother on Monday morning after a friend raised concerns.
A North Yorkshire Police spokeswoman said she was last seen at around 2am on Thursday in the Popworld bar in George Hudson Street, after a night out with friends on Wednesday evening.
Miss Roberts was seen in the CCTV with a group of people on the corner of Rougier Street near Lendal Bridge at around 2.20am. But when the group was picked up on camera a short time later at the other side of the bridge, on Museum Street, the student was not with them.
While police are searching the riverbank in the city centre, an underwater search unit has also been deployed.
