A fire next to the track at Stanford-le-Hope means the line via Grays is blocked.
Trains running between Stanford-le-Hope and Upminster via Grays meay be cancelled, delayed by up to 20 minutes or revised.
Disruption is expected until 17:45.
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.