A safety inspection of the track at Leyton Midland Road means trains between Barking Riverside and Gospel Oak may be cancelled or delayed by up to 20 minutes.
Disruption is expected until 12:30.
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.