HIGHWAYS ENGLAND/MOTORWAY CAMERAS
The lanes are closed on the southbound road between junction 23 and 20.
Police have warned of long delays as they wait to recover a HGV involved in the collision.
Two lorries and a car were involved in the smash, and paramedics have been sent to the scene.
Highways England said: “There are severe delays on the M6 southbound between J23 and J20.
“There is a collision involving multiple vehicles on the M6 southbound between J21 and J20 closing 3 of (4) lanes.
“Delays of 2 hours have been reported on the approach.
“Road users intending on using this section of road are advised to allow plenty of extra time for their journey and to consider alternative routes (if possible).”
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