The Met Police has told cyclists involved in the 'critical mass' procession to keep moving and keep south of the Thames.
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The family of Alfie Dingley, 6, have been refused permission to legally use the drug to help control his seizures.
Part of the message read: “I don’t give a s**t if the whole street collapses”.
Atlantic weather fronts spread cloudy, wet and mild conditions eastwards overnight and throughout tomorrow.