Black ice has caused a lorry to come off the road near Moffat.
Police say the vehicle has damaged cables which are now hanging down across the road.
It means the A701 is currently closed to high vehicles.
Traffic police are in attendance at the scene.
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Spells of rain overnight will give way to a sunny day tomorrow.
Visitors to Bassenthwaite who haven't yet visited the lake's popular ospreys only have a few weeks left to see them up-close.
Two new primary schools in the Borders have welcomed pupils for the first time today, Wednesday 16 August.