A points failure between Potters Bar and Alexandra Palace is causing disruption to Great Northern and Thameslink services running between these stations.
Trains may be cancelled or delayed.
Disruption is expected until 11:00.
Check before you travel:
You can check your journey using the National Rail Enquiries real-time Journey Planner.
âââââââCompensation:
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.