Police divers are searching a loch for a student who went missing while returning home after a night out.
David O'Halloran has not been seen since the early hours of Friday after leaving Dusk nightclub in Stirling to return to his room at Stirling University halls.
Friends saw the 18-year-old get into a taxi at Dalgleish Court at about 12.30am and he was later spotted at the main entrance of the university at about 1.57am.
Mountain rescue teams have been involved in the search for Mr O'Halloran, while Central Scotland Police also drafted in the International Rescue Corps for help earlier this week.
On Thursday police officers and dogs continued a search around the university campus, which is located off Airthrey Road in the city.
Police divers re-examined Airthrey Loch on the grounds of the university on Thursday as the search for Mr O'Halloran, from Kilmaurs in Ayrshire.
Chief Inspector Gordon Dawson said around 40 officers are involved in the search for the mathematics and secondary education student.
Mr O’Halloran, is 5ft 5in, with brown hair with blond highlights which is short at the back and longer on top and is of slim build. When he was last seen he was wearing a white T-shirt with a black and green checked shirt on top, black slim-fit jeans and black trainers.
Anyone with information is asked to contact Central Scotland Police on 01786 456 000.
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