A 'suspicious vehicle' was seen outside Marne Barracks at Catterick Garrison hours before a reported explosion in the early hours of this morning.
The A1 was closed for more than 12 hours after staff at the North Yorkshire army barracks reported hearing an explosion around 3am.
North Yorkshire Police say they have worked overnight and throughout the day to locate the driver of the vehicle and rule him out of any connection to the alleged explosion.
Officers say they are now satisfied he was not related to this investigation and he has been eliminated from their enquiries.
“We appreciate that members of the public will ask why the road had to be shut for so long.
"In view of the location of the suspected explosion, the source of the information, the current threat to UK security and a report a few hours earlier of a vehicle seen in suspicious circumstances outside the barracks, we were not prepared to take any chances with people’s safety and had to carry out a very extensive and thorough investigation.
"We thank the driver of the vehicle for his patience and cooperation. We have also ruled out any link to terrorism.
Supt Hannan also thanked drivers for their 'patience and understanding' during long delays on the A1, adding: "Their safety was our primary concern."
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