Row continued off-air with Boris swearing at Ken

The row continued off-air when a furious Mr Johnson swore at his Labour opponent.

Travelling up to the roof terrace to be photographed, the Mayor shouted at Mr Livingstone "it's all f****** lies, it's all f****** lies".

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Ken & Boris in 'furious row'

London mayoral candidates Ken Livingstone and Boris Johnson have been involved in a furious row in a lift following a debate.