Passengers have been hit by major disruption across London on the Underground, Overground and services to Heathrow Airport.
All trains between Heathrow and central London were suspended for ‘tunnel safety reasons,’ National Rail warned.
Holidaymakers travelling on the Elizabeth line and Heathrow Express are affected by severe disruption to and from the airport.
National Rail said: ‘Heathrow tunnel is closed for safety reasons which means trains are unable to run to and from Heathrow Airport.
‘Trains will be cancelled or revised as a result.’
Elizabeth line trains between Abbey Wood and Heathrow Terminals 4 and 5 cannot run.
Heathrow Express between London Paddington and Heathrow Terminal 5 are also suspended.
Major disruption is expected until at least 9am, and trains will be cancelled or revised, it said.
National Rail said the safety issue was caused by a ‘problem with the ventilation system in Heathrow tunnels,’ so trains cannot run until ‘Network Rail has resolved this issue.’
The London Underground Piccadilly line is still running to and from the airport.
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Tube passengers were warned of severe delays to their journeys this morning.
Part of Central line is suspended, with no service between Leytonstone in east London and Liverpool Street station due to a signal failure at Stratford.
The rest of the line has ‘severe delays,’ Transport for London said.
A stretch of the District line is also partially suspended, with no service between Turnham Green and Richmond while Network Rail engineers fix a track fault at Gunnersbury in southwest London.
The track fault is also affecting the London Overground service.
There is currently no service between Richmond and Gunnersbury.
Service between South Tottenham and Barking Riverside is suspended because of a signal failure at Walthamstow Queen’s Road, the latest TfL status update shows.
Have you been affected? Please email noora.mykkanen@metro.co.uk.
Here are all the affected routes and how to get to the airport if you are affected.
Elizabeth line
Services are suspended between Heathrow Airport and Hayes and Harlington.
Customers can use their tickets on the London Underground Piccadilly Line at no extra cost.
Heathrow Express
The service is suspended between London Paddington and Heathrow Terminal 5.
Passengers can use the following services instead:
This is a developing news story, more to follow soon… Check back shortly for further updates.
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