London Fire Brigade received 42 calls about the foul-smelling but harmless cloud of gas from Frnace than has wafted over parts of the south east - and announced it on Twitter in the style of Allo Allo character Officer Crabtree:
Listen carefully I shall say zis in only 140 characters; we attended 42 calls today due to the French gas cloud over London #alloallo
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A Met Office warning covering much of England and south-east Wales is expected to remain in place until 11am.
A band of cloud and patchy rain is expected across Scotland and Northern Ireland, moving southeast as the day progresses.