29 November 2014
Last updated at 11:24
Police closed the road after an explosion was reported at 03:00 GMT
The A1 road has been closed at Catterick, North Yorkshire, after reports of an explosion.
North Yorkshire Police said it received word of the explosion at 03:00 GMT but there were no reports of any injuries.
Both slip roads to Catterick have also been closed and diversions have been put in place.
Motorists have been advised to avoid the area. The force said Catterick village was “heavily congested”.
A spokeswoman for the Highways Agency said the closure affected a six-mile (10km) stretch of road.
Newcastle United fans travelling to the away game with West Ham are among those affected.
The club said it had notified West Ham officials of the situation.
The A1 runs adjacent to the Army’s Marne Barracks, formerly RAF Catterick.
‘Largest training establishment’
A spokeswoman for North Yorkshire Police said it did not know how close the explosion was to the barracks.
“At the moment it’s only a heard explosion,” she said.
There have not been any evacuations.
A spokesman for Catterick Garrison said the inquiry was police-led and did not have any information about how close the explosion was to the barracks.
On the Ministry of Defence website, Catterick Garrison is described as the army’s “largest training establishment”.
It covers 2,400 acres (971 hectares) and 20,000 acres (8,094 hectares) of training land.
The Garrison is situated just a few miles from the A1 and includes Marne Barracks near Catterick Village and the outstations of Ripon, Dishforth and Topcliffe.