The fire started at a factory on Hampton Park Road in Hereford at around 8am.
Some residents in the nearby area have been evacuated to Hereford Leisure Centre on Holmer Road.
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A woman who helped two men, convicted for murdering a Birmingham teenager, has been jailed for three years.
Wet and rather windy for a time today. Brighter later.
Wind and rain spreading to all parts. Drier later.