LIVE: M5 lanes shut and miles of traffic after crash

Two lanes are closed on the M5 southbound because of a crash. It happened between junctions 19 and 20 at around 3.15pm.

The collision has shut two lanes, with at least four miles of traffic on the motorway as a result. National Highways tweeted: 2 lanes (of 3) are closed on the #M5 southbound between J19 #Portishead and J20 #Clevedon due to a collision There is around 4 miles of congestion on approach to the closures which is adding about half an hour to normal journey times."

Traffic monitoring website Inrix reports: "Long delays and two lanes closed due to an accident on M5 Southbound from J19 A369 Martcombe Road (Portishead) to J20 B3133 Ettlingen Way (Clevedon).

"Lanes two and three ( of three) are closed."

Updates on this incident will appear in our blog below: