A fault with the signalling system between Watford Junction London Euston means all lines are blocked. As a result, services between these stations may be cancelled, delayed by up to 60 minutes or revised.
This is expected until 17:45.
Customer Advice for London Overground
Trains between Watford Junction and Willesden Junction may be suspended. A reduced service will operate between London Euston and Willesden Junction only.
You may use your ticket on Local Buses via any reasonable route.
Customer Advice for Southern
Southern have recently been told about this. Your journey is likely to be severely disrupted by a signalling problem in the Watford Junction area. We're working to gather more information.
It's likely that you may need to use another route, and we'll let you know more details shortly.
You'll be able to see any further updates on this page, so please continue to check back here.
Changes to services:
When more is known about changes to trains in this area, we'll update this part of advice, so you can see how your train may be altered.
Ticket acceptance on alternative routes:
Southern are currently working with other public transport companies to make sure that your ticket will be accepted on other routes.
When you're able to use another option for your journey, we'll let you know the details here.
If you're waiting on a train which is delayed between stations:
If your train is delayed between stations, please remain where you are and listen to announcements, or speak to staff for further information. Southern will get you moving as soon as possible. Southern are aware of your location, and teams will be doing everything they can to help you continue your journey.
Please don't leave the train unless you are asked to do so. Other trains may still be moving in the area, and the track is also a very hazardous environment. In areas where the trains are powered by an electric third rail, this usually stays live and dangerous during incidents, and looks the same as other rails.
Planning your journey:
You can see a live map of the network here. This will now show where your journey is likely to be delayed.
Can you tell me more about the incident?
At the moment, we're working with local staff and colleagues at Network Rail to assess the situation. A complete failure of the signalling system has been reported.
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.