Aerial footage shows the multi vehicle crash on the M11 in which two people died.
Police one person has been arrested on suspicion of dangerous driving.
One of the vehicles involved was a horse box carrying a number of horses.
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Becoming clear and frosty overnight. Bright and dry on Monday.
An Essex councillor is appealing for help to find out what happened to her "beautiful, much-adored" daughter after she was found dead.
Frost and freezing fog overnight but milder with some rain tomorrow.