M11 partially closed as emergency services respond to lorry fire
A police spokesman said: "Officers attended along with the fire service and there were no injuries and no arrests.
"Officers left the scene at about 08:20 GMT and road closures were left with highways."
Cambridgeshire Fire and Rescue Service said it was called at 05:33 with crews from Sawston, Cottenham, Cambridge and Burwell sent.
A water carrier from Newmarket in Suffolk, and a crew from Royston in Hertfordshire, also attended.
They wore breathing apparatus and crews started returning to their stations by 07:50.