Fifty people had to be evacuated from part of Islington this morning after an explosion beneath a pavement on Caledonian Road. Flames were seen coming from the electrical manhole cover just before 10am.
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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.