The incident, which involved a heavy goods vehicle (HGV), took place on the entry slip road to the northbound carriageway of the M11 near Junction 8 for Stansted Airport. A spokesman for National Highways said: "Service providers are on scene treating a large spillage underneath the HGV. Delays of around 10 minutes are being reported, although traffic on the M11 appears to be coping well. However, traffic joining from the A120 is queuing back towards the Stansted Road roundabout. Drivers are advised to leave early to avoid delaying their journey, or seek alternative routes were possible.