Overview

• The motorway is closed in both directions between J27 (Tiverton) and J28 (Cullompton) after an initial southbound crash late Thursday.
• National Highways reports two secondary collisions in queuing traffic, prompting an extended closure while Devon & Cornwall Police carry out forensic work.
• An air ambulance attended overnight with traffic held for a helicopter landing, and contractors are cutting the central reservation to release trapped vehicles.
• Signed diversion routes are active, with northbound drivers following the hollow diamond and southbound the solid square, as heavy congestion builds on local roads.
• Separately, the M11 southbound crash near Cambridge involved four vehicles with one woman taken to Addenbrooke’s before the road reopened, while the A12 northbound near Chelmsford was closed after a serious collision.