Sadiq Khan has confirmed he “remains opposed” to a third runway at Heathrow Airport, putting him on a collision course with Chancellor Rachel Reeves. The mayor of London responded to Reeves’ announcement of the government’s backing for the UK’s only hub airport to expand its facilities during her economic speech on Wednesday.

The London Mayor is sharpening his knives for the long-delayed third runway – but is this a matter of policy or political manoeuvring?

Rachel Reeves has told London Mayor Sadiq Khan she is certain to defeat his bid to sabotage her Heathrow expansion scheme. Asked if Mr Khan was able to stop to her third runway plan, the Chancellor replied: ‘No.’ The capital’s Labour mayor could mount a legal challenge, she said, but he would not prevail in the end.

Rachel Reeves is facing fierce opposition within Labour over her plans for a third runway at Heathrow Airport.

Sadiq Khan has vowed to block the third Heathrow runway "with any tool in the toolkit" in a rift with the government after Rachel Reeves said she would back plans.

Labour backlash over Heathrow as Sadiq Khan and MPs hit out at 'hugely damaging' 'mistake’ - Energy secretary Ed Miliband, who threatened to resign from Gordon Brown’s government over expansion of the west London airport,

Heathrow expansion would undermine London's 'clean air' progress - The mayor also cast doubt on the project’s economic benefits and said it would worsen noise levels suffered by west Londoners

Reeves made an announcement on Heathrow during a major speech outlining Labour's plans to deliver economic growth.

Londoners strongly support Heathrow building a third runway, a poll has shown, as the Government faces a row with Sadiq Khan over the plan. More than half of people in the capital (56%) surveyed said they were in favour of the expansion, which Chancellor Rachel Reeves on Wednesday announced the Government would back.

London mayor Sadiq Khan 'remains opposed' to a third runway at Heathrow, amid rumours of tension within the Labour party over the plans.

Stars align for Heathrow third runway but Supreme Court may put the fast-warming planet first - Commentary: The battleground on expansion of the west London airport will be climate change not air poll