
Traffic officers have closed one lane on the northbound carriageway, between junctions 40 (Penrith) and 41 (Wigton), due to a vehicle fire.
Fire crews are at the scene and Highways England is warning of possible delays until 8.15am.
No injuries have been reported at this stage.
The incident is likely to cause some delays for those heading to Keswick, Ullswater and other popular spots in the North Lakes.
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