A damp start couldn't stop hundreds of thousands of people turning out for this year's Notting Hill Carnival.
Everyone seemed to be having a good time including a dancing policeman who was filmed enjoying the carnival atmosphere.
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A lamp in the tower which houses Big Ben is to be switched off for the first time in more than 70 years.
Sir Bruce entertained audiences for more than seven decades.
Work in the tower will also pause over the bank holiday weekend.