Professor Green is appearing in court charged with drink-driving. The rapper, who is married to Made In Chelsea's Millie Mackintosh, was arrested in November last year.
Police were called to Tyrwhitt Road in Lewisham thinking they were turning up to a robbery. But when officers arrived, theys found a Mercedes had collided with a van. No one was injured.
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Mayor of London Sadiq Khan is backing the scheme.
A spokesperson said the lightning strikes had left the "aircraft fuelling system unavailable."
Nearly 1,000 properties have been left without power, and road users have been warned of potentially hazardous conditions.