Jeremy Corbyn has said he opposes expansion at Heathrow because of noise and pollution

Labour could block a third runway at Heathrow over air pollution concerns. Senior party figures hinted yesterday that the leadership was preparing to oppose the plans.

Allies of Jeremy Corbyn have said there is “no way” the party would support a new runway.

A leaked draft of Labour’s manifesto at the last election committed the party to supporting Heathrow expansion but this was later watered down and any specific reference to Heathrow omitted.

The final version said merely that Labour recognised the need for additional airport capacity in the southeast. It guaranteed the party would implement strict environmental and economic tests focusing on noise pollution, air quality, meeting the UK’s climate change obligations and supporting economic growth across the country.

Several senior Labour figures have