A fault with the signalling system between Sunderland and Stockton means that all lines are blocked. Trains running between Sunderland and Middlesbrough may be cancelled or delayed by up to 30 minutes.
Disruption is expected until the end of the day.
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.