Boris Johnson today warned No 10 it must plough cash into London to secure Britain's recovery as he set out his vision to make it the "greatest city on earth".
The Mayor used his speech at City Hall this morning as a massive publicity plug for investment into transport.
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Pictures of today's events unfolding following a major security incident at the Houses of Parliament.
At least two people have died after a knifeman brought terror to the heart of Westminster.
The Cobra committee brings together government ministers with senior officials of the emergency services and security agencies.