New sighting of missing Stirling student David O'Halloran
A new confirmed sighting has been made of a student who went missing after a night out in Stirling.
David O'Halloran, 18, was last seen in the early hours of Friday 18 January. It is believed he planned to return to his university accommodation.
CCTV has now been found showing him crossing Henderson Street in Bridge of Allan, heading in the direction of the Keir Roundabout at about 02:20.
The police search has involved a helicopter, dogs and divers.
Insp Pat Scroggie said: "We are keen to hear from anybody who was in the Bridge of Allan area between 2am and 3am on Friday 18 January.
"We are also keen to hear from anybody who may have seen David walking."
In an earlier sighting, the 18-year-old was seen to walk along Airthry Road from Causewayhead from about 01:15.
He was later seen at the roundabout outside Stirling University at about 02:00.
Insp Scroggie added: "David may have appeared unsteady on his feet. We have carried out extensive searches in the grounds of Stirling University as well as gardens of residential houses in Bridge of Allan.
"We are extremely concerned for David as this is totally out of character for him.
"When he went missing, the weather was extremely cold and it has remained wintery."
David is described as being 5ft 5in tall, of slim build and has brown hair, with blond highlights, which is short at the back and longer on top.
He was wearing a white t-shirt with a black and green checked shirt on top. He was also wearing black slim-fit jeans and black trainers.