Motorists on the M11 southbound are facing significant delays this afternoon following a serious traffic incident just before Junction 10 for Duxford, close to the Imperial War Museum.

Traffic has come to a complete standstill as emergency services respond to the scene. Initial reports indicate that the collision occurred shortly before 3:00 p.m., involving multiple vehicles.

Witnesses have described seeing an ambulance at the centre of the emergency response, with concerns that an individual may be trapped inside. The full circumstances of the incident remain unclear, but the situation has prompted a major deployment of fire, police, and additional medical units to the scene.

Cambridgeshire Fire and Rescue Service crews are understood to be working alongside paramedics to safely extract the person reported trapped. The condition of the individual has not yet been confirmed, but the presence of specialist rescue equipment suggests serious injuries may have been sustained.

The southbound carriageway has been completely closed between Junctions 11 and 9, causing heavy congestion and long tailbacks. Highways officers are advising drivers to avoid the area entirely and to use alternative routes, warning that delays may extend for several hours while recovery and investigation work takes place.

The Imperial War Museum Duxford, located adjacent to Junction 10, remains open but is experiencing increased traffic in the surrounding area as vehicles are diverted from the motorway. Local roads are also becoming congested as drivers attempt to bypass the closure, leading to further disruption in nearby villages and towns.

Motorists caught within the closure are being advised to remain in their vehicles and await further instructions from police or traffic officers. Those with urgent travel plans are urged to check live traffic updates before setting out, as the southbound M11 remains impassable at this time.

Accident investigation teams are expected to carry out a thorough examination of the scene once the injured party has been safely removed. Police will be working to establish the cause of the collision, including whether weather, driver error, or mechanical failure played a role.

For many in the area, the incident is a stark reminder of the fragility of road safety and the importance of remaining vigilant behind the wheel. With the summer holiday season in full swing, the M11 often experiences higher-than-usual traffic volumes, increasing the risk of serious accidents.

Emergency services are asking anyone who may have witnessed the collision or has dashcam footage from the time of the incident to come forward, as this could assist in their investigation.

Further updates will be provided as more details emerge regarding the condition of those involved and the expected duration of the closure.