1,100 hours of CCTV checked in search for missing Fife serviceman
Corrie McKeague was last seen on a night out with friends in Suffolk.
More than 1,100 hours of CCTV footage has been viewed by officers investigating the disappearance of an RAF serviceman from Dunfermline, according to police.
Corrie McKeague, 23, was last seen in the early hours of September 24 after a night out with friends in Bury St Edmunds, Suffolk.
He was later reported missing when he failed to turn up at RAF Honington.
Suffolk Police said more than 1,100 hours of CCTV footage had been seized from local authority, business and private individual sources.
This has been systematically viewed, starting from the last confirmed sighting at 3.25am in Brentgovel Street, gradually expanding outwards to 8am and further away from the point of the last confirmed images of him.
There remain no positive sightings of Mr McKeague. Police said work was continuing and all footage has been sent for further detailed analysis to ensure nothing has been missed.
The early stages of the investigation focused on roadsides between Bury St Edmunds and Honington, and this was expanded to surrounding farmland.
The RAF and volunteers from Suffolk Lowland Search and Rescue have assisted with water searches in the River Lark and in bodies of water and ditches between the town and the base.
British Transport Police have searched along the railway line from Bury St Edmunds and the National Police Air Service helicopter has been carrying out searches.
CCTV viewers from the Metropolitan Police have also assisted the investigation.
Detective Superintendent Katie Elliott said: We have to keep an open mind as there is no key line of inquiry to take us in any one direction.
We can't rule anything out and therefore we have to continue to investigate all possibilities.
Despite extensive searches, CCTV viewing, media appeals and many behind the scenes enquiries we still do not have a lead which takes us forward.
Many theories are being explored and work is ongoing to trace everyone who was in the area around the key time as they may have information that may help.''
Corrie's mother Nicola Urquhart, a police officer from Dunfermline, has previously told of how she fears he got into a car willingly or unwillingly''.