London's Mayor is famous for his love of two wheeled transport. He was joined this morning by Olympic double gold medallist Laura Trott to launch a two day cycling event, free for anybody to join.
You can find out how to register here: http://www.prudentialridelondon.co.uk/
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Sir Bruce entertained audiences for more than seven decades.
Work in the tower will also pause over the bank holiday weekend.
The attacker grabbed her dog lead wrapped it round her neck and started to strangle her before running away.