We are asking people to stay in their houses because the electricity underground has not yet been isolated in the street outside.About 30 to 50 houses are affected and they are all thought to have basements which may be flooded.
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David Cameron said the Met proved it can "do more with less" and declined to criticise the Mayor of London for his water cannon spend.
A group of disabled activists threw toys and balls at him as he entered the conference.
A wet start to the week and the unsettled weather is set to continue over the next few days.