An extra four fire engines were called in at around 6pm to help tackle the blaze at John Ray Infant School in Braintree.
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Frost and freezing fog overnight but milder with some rain tomorrow.
A charity claims authorities in Cambridgeshire are failing to investigate enough reports of abuse of older people.
A week after a woman was raped in Lowestoft, police were out in the early hours of the morning speaking to people in the area.