Traffic is building on the M6 this evening after a multi-vehicle crash. The Thelwall Viaduct is currently closed in both directions following the accident between J20 at Lymm Interchange and J21 at Manchester Road in Warrington. National Highways officers, Cheshire Police and Cheshire Fire and Rescue Service are currently at the scene. There are currently delays of up to 30 minutes on approach, according to National Highways. We'll be bring you all the updates through our live blog below.