A points failure between Finsbury Park and Alexandra Palace means some lines are blocked. As a result no trains can call at Harringay or Hornsey in the northbound direction. This is expected until approximately 16:00.

Customer advice:

No trains can call at Harringay or Hornsey, in the direction of Alexandra Palace, until further notice. Please allow an additional 20 minutes for your journey, and check station screens and planners for the latest information.

• If you are travelling from the Finsbury Park direction, and you need Harringay or Hornsey you should carry on through to Alexandra Palace and change for a return service
• If you are at Harringay or Hornsey, and need to travel towards Alexandra Palace, you should take a train to Finsbury Park and change for a return service

Planning your journey:

Live departure boards can be found here, and you can also view a live map of the network here.

You can also use the Great Northern app to find up-to-date information.

Can you tell me more about the incident?

A points failure has been reported, and this is preventing trains from using some of the routes through this area.

Points are moveable sections of track which can send trains onto different routes at junctions. These are part of the signalling system, generally managed by Network Rail.

Points can stop moving correctly for a number of reasons. For example, there may be an obstruction in the moving parts, or the electronic control systems may have developed a fault.

Network Rail will send their specialist Signalling & Telecoms teams to site, and they will set up a safe method of working on the track. To allow staff to access the railway, sometimes we have to stop trains completely, which can lead to your train being held at stations or signals en route.

As soon as it's safe to go on the line, the staff will diagnose the fault and find any quick solutions to resolve it.

Whilst this is being done, we will be monitoring progress closely. At times, replacement parts may be needed, or specialist advice from suppliers, which is why some points failures take longer to resolve than others.

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.