Commuters have been warned to expect severe delays and cancellations on the London Paddington route this morning.
Passengers face major disruption on the busy commuter route today after an emergency incident.
All lines have been closed while the emergency services respond, National Rail said as it provided the update on the Elizabeth line, Heathrow Express and Great Western Railway services.
If you are travelling between Reading, Heathrow Airport and Paddington, the journey could be cancelled, delayed by up to an hour or revised.
Travel on the route is expected to be hampered at least until 10.30am.
There is no Elizabeth line service between Paddington, Heathrow Terminals T4 and T5 and Reading.
Advice for passengers
Great Western Railway customers are warned of even longer delays.
National Rail said: ‘Your journey is likely to be delayed and could take up to 90 minutes longer to complete. Some trains will be revised, only completing parts of their normal journeys, and there will also be some cancellations.
‘To avoid trains being stopped for a long time outside of a station, some of the longer distance trains may be held in station platforms some distance away from the affected area.
‘If your train is cancelled, you may travel on either of the two services before, or two services after, your original train. If these are peak services or less flexible, you can still travel with your original ticket, at no extra cost.’
Ticket acceptance is in place for alternative Chiltern Railway, CrossCountry and South Western Railway services.
Elizabeth line customers can use their tickets on other London Underground services via any reasonable route, TfL said.
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