A fault with the signalling system between Grays and Upminster means all lines towards London are disrupted.
Trains running between these stations may be cancelled, diverted via Rainham or delayed by up to 20 minutes.
Disruption is expected until 09:00.
Customer Advice:
To assist you with your journey, London Buses (370) are accepting c2c tickets at no extra cost between Upminster and Chafford Hundred.
Rail replacement transport is in operation between Grays and Upminster calling at Chafford Hundred and Ockendon.
Check before you travel:
You can check your journey using the National Rail Enquiries real-time Journey Planner.
For helpful advice if you need to travel on a rail replacement service, including accessibility and bicycle information, please use our Rail Replacement Services page.
You can find the pick-up and set-down location of rail replacement services by checking station signage or by searching for your station on our Find a Station page.
Please be advised that replacement vehicles may be busier than usual, and you should allow extra time for your journey.
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.