Emergency services rushed to the scene of the pile up as traffic came to a standstill between Junction 18 and Junction 20 northbound during rush hour.
Highways England warned drivers to expect delays of up to one hour and a half, following the crash shortly after 7am.
In a statement Highways England said: “There are currently severe delays on the M6 northbound between J18 – J19 due to an earlier incident within J20 which has now cleared.
“There is now also a lane closure between J19 and J20 due to a broken down HGV which is adding to congestion.
“Drivers are advised to allow extra time for their journeys should they be travelling in this direction.”
More to follow…