Boris Johnson to attack David Cameron's aviation policy

London Mayor Boris Johnson will risk the wrath of Prime Minister David Cameron today by highlighting "unnecessary" delays in formulating aviation policy.

Mayor of London Boris Johnson (left) and Prime Minister David Cameron Credit: Yui Mok/PA Wire

Mr Johnson is expected to repeat calls for his Thames Estuary airport scheme, dubbed "Boris island".

In a speech to business leaders, the mayor is likely to be critical of the timescale of the recently announced, Whitehall-commissioned independent report on aviation being headed by former Financial Services Authority chief Sir Howard Davies.