London mayor Boris Johnson said: "It has been the most incredible epoch in the history of cycling that any of us can remember; and I am absolutely delighted that the world's greatest cycling race is coming to the capital.
"People will see London framed by shooting velocipedes for what will be a fantastic spectacle of sport. I am going to be in the crowd and I hope thousands more will too."
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Home Secretary Theresa May and French counterpart Bernard Cazeneuve call on EU nations to tackle the root causes of the migrant crisis.
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Very warm in the southeast tomorrow