A number of videos on YouTube appear to show the 'false widow' spider in action.
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Sadiq Khan argues people living in the capital should not be embarrassed about saying "first dibs for Londoners" when it comes to housing.
Police are concerned for the welfare of a 12-year-old boy who is missing from home in Stockwell.
A motorcyclist was left in a critical condition following crash near Upton Park, police said.