Residual delays between Welwyn Garden City and Alexandra Palace expected until 19:30
Service alteration details
Incident reported: Tuesday 05 May 2026 at 17:11
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Last updated
Tuesday 05 May 2026 at 18:32
Train operators affected
Route(s) affected
Great Northern between Kings Lynn / Peterborough / Cambridge / Letchworth Garden City and London Kings Cross, and also between Welwyn Garden City and Moorgate
Thameslink between Peterborough and Horsham, and between Cambridge and Brighton, and between Welwyn Garden City and Sevenoaks
Description
Following a fault on a train between Welwyn Garden City and Alexandra Palace all lines have reopened. As service recovers, trains may still be delayed by up to 15 minutes.
Disruption is expected until 19:30.
Customer advice:
Staff are working on recovering the scheduled service, however trains running now continue to be affected by delays of up to 15 minutes.
Some services may not call at all scheduled stations in order to make up time. If your journey has been affected, please change for an alternative Great Northern or Thameslink services towards your destination.
Your ticket will be accepted on alternative Great Northern and Thameslink trains at no extra cost.
Planning your journey:
You can check train departures from your station here:
You can view live maps of our network here:
You can see our alternative route guides here:
If you're travelling in the London area, you can plan journeys on alternative routes by using the TfL Journey Planner.
You can also use Great Northern / Thameslink apps to find up-to-date information.
Can you tell me more about the incident?
A train fault earlier today has caused delays in this area.
As the fault could not be fixed within 10 minutes, we have taken the train out of service and are moving it to a depot, where specialists will be available to assess the fault further.
Check before you travel:
You can check your journey using the National Rail Enquiries real-time Journey Planner.
Compensation:
You may be entitled to compensation if you experience a delay in completing your journey today. Please keep your train ticket and make a note of your journey, as both will be required to support any claim.
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