Consumers have a right to expect that food is exactly what it says on the label.
While bute presents very low risk to human health, the Food Standards Agency is investigating this specific horsemeat contamination case and will take action as necessary.
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Dozens of flood alerts have been issued for swathes of the country as heavy downpours and severe gales are expected.
Four migrants who tried to cross the Channel in an inflatable dinghy have reportedly been rescued by French coastguards.
The victim, a man in his 40s, is being treated in hospital for "life-changing" injuries after the attack by two men who remain on the run.