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Third Heathrow airport runway 'could be built over M25'

A third runway at Heathrow could be built over the M25, the Transport Secretary has said.

It comes after Theresa May's decision to back Heathrow expansion plunged the Conservatives into turmoil, as Cabinet ministers hit out at the move and a prominent MP quit.

Tory supporting councils are poised to support legal action challenging the plans and Foreign Secretary Boris Johnson insisted the scheme was "undeliverable".

Conservative bosses were forced to announce the party would not fight the by-election triggered by Zac Goldsmith in protest over the third runway.

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Heathrow decision could be politically risky for Tories

Ministers chose the Heathrow Airport expansion over Gatwick to show, post-Brexit that the UK is "open for business", according to Transport Secretary Chris Grayling.

The expansion will be paid for by private companies at an estimated £17.6billion, but it is politically risky with critics within the cabinet including Foreign Secretary Boris Johnson describing it as "undeliverable".

And the resignation of Zac Goldsmith, triggering a by-election in his Richmond Park constituency has already proven the decision to be politically fragile.

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